is there a way to check the value of itunes gift cards without putting them onto your account?

Find instructions and a PIN# on the back of the card?

Doesn't it say it on the front in big, bold numbers?

EDITED

:confused: Why am I questioning the legality of this?

Sounds illegal, against forum rules, already got warning, can't help. You'll probably get a warning.

If it is illegal.

I would be very suspicous about buying prepaid cards unless you a) had the card there and b) any voucher number you need to enter is visable to everyone. Its asking to get conned.

Yeah, this sounds sketchy. If your friend is giving you a gift card, you should get a card or a notification that you have points to use.