You need to work on him, obviously. (your husband, not the seller. I'm sure another glowing fox will turn up with somebody who isn't going to be so difficult.)
Does he have hobbies he spends money on?
You can always work the idea that in the secondary market, anything you buy might well sell to somebody else - you don't actually loose all your outlay the way you do in the primary market.
Many folk do find it's a hobby that can, if you're sensible, almost pay for itself.
The best thing to do is convert him to glass too.