Dude, have you even seen the SXRD? I compared them directly, SXRD smokes Samsung.
CNet score for the SXRD= 8.8 and it received the Editor's Choice Award. There isn't any screen door affect. This TV is regarded as the best 1080p available today.
CNet score for the Samsung= 7.6
The Samsung doesn't have a true 1920x1080 pixel resolution.
This is what cnet said about the 67" model (same specs as the 61")
As we mentioned at the outset, the Samsung HL-R6768W has a native resolution of 1,920x1,080, which should enable it to resolve every pixel of 1080i high-def sources. Like most other 1080p displays on the market, the Samsung uses a Texas Instruments DLP chip. We prefer to think of the chip as a "quasi" 1080p solution, however, because it actually has only 960x1,080 physical pixels. A process called wobulation or smooth picture is used to effectively double the horizontal resolution by making the mirrors on the chip do double duty. In contrast, LCoS-based 1080p HDTVs have chips with all 2 million-plus discrete pixels. Despite having roughly half as many pixels, wobulated chips have the potential to display all 1,920 lines, but as usual, what actually appears on the screen varies across models and manufacturers.lol, wobulated chip.
Seriously though, you got a nice TV at a great price.

"Half as many physical pixels... blah blah blah"
Yes, that is true, but the 6th gen has mirrors that reflect and deflect twice as fast as previous gens. Making an absolute true 1080p