I can't imagine, if you're a member, why you would not want to buy a big-ticket consumer electronics item from Costco. We got our 50" plasma from them in February. Let me run down the reasons why.
They had a coupon from their January "wallet" of savings for the plasma we got. Costco sends these coupon booklets out to their members every year right after Christmas to get people back into the stores. It so happens that this coupon was for the exact TV we wanted. Consumer Reports said that the Panasonic "TH" line - "Viera" is the product name on the upper left of the screen frame - was THE best TV they had ever tested. So this was a no-brainer for us. We saved several hundred dollars off the already-low price.
So yes, in answer to your question, you do get the high-end products at Costco.
The only hassle was getting it home ourselves, but that's worth it for the savings.
The other two major reasons we bought there have to do with service. Costco automatically extended the one-year manufacturer warranty to two years - no extra charge. They also give you access to their "concierge" service via a toll-free number. When I couldn't figure out why I could not get our TV to display closed captions, I called them. The tech I spoke with could not have been more helpful, courteous, or professional. When you drop $2K on a TV you want some security. We feel that we have that in abundance.
We also picked up a very nice steel and smoked glass table for the TV at the warehouse. It looks great in our living room and matches well with the plasma.
I can't guarantee you'll find the exact TV we got, but it's a Panasonic. They also carry Samsung, Vizio, Sony, and a couple of others I can't remember right now. They have plasmas, LCDs, and DLPs. But I highly recommend the Panasonic Viera line of plasmas. Ours is a 1080p model. You should spend the extra money for it since it will display Blu Ray video with the highest level of clarity.
Feel free to ask any other questions about our Costco experience. And I also encourage you to wait for the next coupon booklet to come out after Christmas. You'll save a bunch of money if you do.
Dumb question here but I am about to invest in a nice TV and don't want to screw up. Thinking about buying a 46-50" plasma and may go to Costco to save a few hundred bucks. Are they they same TV's (looking at Panny's) that can be found at the Best Buys of the world? I know the Costco TV's have a different serial number than the box stores but are the specs the same on the "same" TV at Best Buy? Any reason why not to buy a TV at Costco? Thanks