Does that include them
stripping it for you to show you the guts?
I can understand not wanting to let customers do it themselves as some may have absolutely no idea how, but if stripping is just not allowed at all, I would likely shy away.
I've gotten a "Like New" gun before. Dealer was upfront that it had been sold, then returned and exchanged, with about 100 rounds down it.
Never shot it, but the wear seemed like a lot more than 100 rounds worth (that or packing grease was never cleaned off
Regardless, brought back and paid $10 more for the New-New one