I think a lot of people are mixing a conversation like this:
"Dude, buy this pre-owned copy, its cheaper"
"I wanna buy this new version thanks"
"You sure man? It works just as much as a new one and you save money"
"Oh, ok then"
with a conversation like this:
"Dude, buy this one"
"I don't want to"
"Seriously, buy it, its better"
"I want to buy this one, thanks"
"Just fucking buy the cheap one or get out"
Which people actually complain about all the time. I don't see how someone offering you a cheaper copy is apparently hostile and shady, but people get offended by the darnedest things these days.
Oh, in regards to employees at GAME asking if you want to buy points or pre-order something while you're there, when I asked a year ago he told me that they got rated on the accessories or pre-orders that they sold.
Then he promptly told me he'd give me £10 if I flipped a coin and it was a tails, on the condition that I would pre-order a game that I was thinking of getting if it was a heads. I loved that guy, made every trip into that store a laugh.
Going into the aldershot branch on the otherhand, was horrifying. I got kicked out for chuckling when the guy on the till asked a guy with a white gandalf beard for ID. Pricks.
TLR
It really depends on the shop if its the employees, if not read the top half of the post, you lazy prick