I don't know, GLC
We paid at least 20 bucks for the gloves I wore out after 2 or 3 seasons.
How much is reasonable to expect to last a while?
I have other gloves (non-biking) that have lasted 20 years, usually the thing that goes wrong with gloves is that you lose them, not wear them out.
I've had the same pair of too thin leather garden gloves for over 10 years. I wish THEY'd wear out so I could get another pair.