OBC: lots of good advice on here. Being able to look through a bunch of different scopes is a golden opportunity. Regardless of the cost of the gun, get the best glass you can. When the rifle dies, the scope can then be put on a new gun.
Expensive scopes and mounts are where a lot of the cost should be.... Shit, I've got a $550 rifle with a $1200 optic setup.....
BUT, I can (and do) take that scope between several rifles.