This seems to be very dependent on the people and store locations. We just bought a $2k HDTV, and weren't pressured in to warranty, weren't upsold on any services like that, and they delivered, installed and configured it for free.
re: cables - every retail store rips you off. go to target, walmart, radio shack - they all have $20 cables that you can get online for $5. I've had other geeks laugh at me when I complain about cable pricing. "Dude, just get it online!". Well... when I need a cable, I need a cable. I don't want to preemptively buy 5-6 cheap ones online (however cheap they are) on the offchance that I'll need one of them later.
maybe, and maybe, because we bought a more expensive one, there was no call/pressure to upsell? they'd already hit a profit min for that sale? still, I'm not even sure we were offered an extended warranty. Well... maybe. been a few months now - can't remember.
re: cables - every retail store rips you off. go to target, walmart, radio shack - they all have $20 cables that you can get online for $5. I've had other geeks laugh at me when I complain about cable pricing. "Dude, just get it online!". Well... when I need a cable, I need a cable. I don't want to preemptively buy 5-6 cheap ones online (however cheap they are) on the offchance that I'll need one of them later.