They are both lower-end mechs and I doubt that you would notice much of a difference. If they are set up right, they both will perform adequately.

Nothing wrong with making a fuss, though, if you think you've been mistreated. Instead of chatting online with the low-paid menu reading support staff, talk directly to your dealer. If you make a big enough stink, they may give you a bit of a credit to make you go away. Price difference is something like $10, so perhaps you can get a water bottle out of it.