While it's true I did make that comparison, I did so before there were any DL BRD releases... back before the weren't even using the VC-1 codec when HD-DVD was far and wide superior for movie viewing. Blue-Ray as of late has done a lot to catch up in that regard. Though AFAIK they aren't using DL discs for games yet, so it doesn't really matter.
I think there are some important things to consider here
1. "The PS3 has a lot of potential" - That's great... but as others have mentioned potential is worthless unless it's actually utilized. You may also recall another console that was priced higher then it's competitors, lost a lot of exclusive 3rd party support, was rushed to launch, and had bucket loads of potential (and arguably more powerful then it's competitors)... the Sega Saturn. The Saturn had some great games, heck I own a number of games and 3 Saturn consoles, but the problem was it was priced too high for consumers to afford and much of the 3rd party support went to competitors due to Sega's bullying of 3rd parties and the poor launch sales.
The Saturn was easily the most powerful system of that generation, but it was tricky to program for because it used a unique 3 processor architecture and had poor development tools making that power difficult to tap (ring any bells?) Ultimately it failed due to PR blunders, high price, and poor 3rd party support. I'm not saying the PS3 will suffer the same fate as the Saturn, but there are certainly more similarities between the two then there are between the 360 and the Dreamcast that everyone likes to draw similarities from.
2. "Bluray has MANY times the corporate backing" - Very true... but it's useless for video games, actually it's useless to movie fans too considering dual-format players will be hitting the market soon. Once that happens the PS3 loses a lot of it's allure as an Blu-Ray player because consumers will still have to buy an HD-DVD player if they want to play ALL movies.
Because the movie studios are split (at all) with their support, consumers can't easily choose one format over another, it's not like Paramount and Warner Brothers release the same movie and you choose one over the other... this isn't buying a car where two different companies produce similar product that do exactly the same thing and you pick one... Movie fans like all types of movies, from all studios. Chances are if two different studios produce similar movies and you're a FAN of that type of movie, you'll want to see BOTH of them.
I feel HD-DVD and Blu-Ray are going the way of DVD-R and DVD+R... the industry couldn't come to terms so both formats become wrapped into one to the point where consumers can buy the media blind and it will just work... You'd be a fool to buy a burner today that didn't support both formats, similarly if you owned an old burner that only supported one and not the other you'd probably be in dire need of an upgrade.
Lets also consider WHY more studios back Blu-Ray... From the technical side of a cost/benefit analysis HD-DVD makes a lot more sense, the tech is cheaper for consumers, it's cheaper to manufacture, it's cheaper to upgrade existing equipment, HD-DVD discs are more durable, the two formats are essentially equal in terms of disc content mastering and codec support, and the difference in resulting picture and sound is marginal at best, not to mention HD-DVD was coming to market sooner... point to HD-DVD
So why the increased support for Blu-Ray?... it stems purely from a marketing standpoint, back when this whole debacle started Sony assembled all the Movie big-wigs into a conference room and explained it plainly:
The PS2 has sold an overwhelming number of units, they would be including their Blu-Ray format in every PS3, and the PS3 is expected to sell as well if not better then the PS2... Essentially putting Blu-Ray in millions of homes almost immediately.
To a corporate talking head with no insight into the video game industry or technical background what-so-ever that sounds like a sweet deal and a very very easy decision.
Now that the the dual format players are coming out it wont even matter... movie companies will be able to feel confident releasing their film on which ever format best suits them because consumers will be able to play their movie no matter what.
This would obsolete the PS3's disc playing capabilities right out of the gate because it will only be able to play half of the films released, it looses it's use as a cheap HD movie player, and it's Blu-Ray only drive essentially becomes useful only for gaming applications...
Which as of now the gaming applications for Blu-Ray have yet to really prove themselves as being more benificial then DVD.
once again, lots of potential but potential is useless unless you have people who make something of it.