Your comment about salesstaff at the big stores is exactly my point: they don't know what they're doing. It is, however, the big stores that provide the most exposure to product to the widest audience. And this is one simple but overpowering reason that HD is not a bigger seller. When colour came to TVs, no one had to sell 'em: they sold themselves. But if you can't see a HiDef picture, you won't know what you're missing. But while I often visit the superstores, I generally make it a point to actually buy from my trusted retailer and specialist.
If the staff at the superstores don't "have the knowledge, drive or authority to adjust a TV on the floor", then two things are required: manufacturers need to set 'em up properly to begin with, thus overcoming that barrier to common sense; and, the management at these stores should focus on the "drive and authority" parts, because employees do get training on their products. It's all part of the deal with the manufacturers and distributors.
Furthermore, the local manufacturers' reps would seem to be remiss in not checking out these places as part of their daily rounds and insisting that their product be "lookin' good". I know some reps, but I don't know what their responsibilities are in cases like this. I wouldn't mind finding out.
You would seem to suggest that because they have "travelled a great distance" that they would somehow be knocked out of calibration. I've seen the packing in these things, and I find it hard to believe they are capable of that kind of internal damage during shipping. Yes, perhaps a few degrees, but no more. Maybe I'm wrong.
Most local home theatre specialty dealers include a proper setup at your home for TVs that are priced above the 'snatch'n go" range. Beyond that, expecting customers to pay for an ISF calibration is ludicrous. They wouldn't sell too many sets if they advertised "Look, these things are so out-of-whack from the factory you're gonna have to hire a pro for another $200 to $300 to come to your house and fix it..."
I pretty much have all the fine-tuning DVDs out there, and have managed to establish what I think is a dandy picture quality, although I'm still interested in having our local ISF guy come over and perhaps make it even better.
