Prices at wholesale have gone up over the last year. I just placed a stocking order for 20 of them and noticed it. It's about $10 at wholesale over what it was last year. Projections were that all tires would go up all season last year and they did. Want to pay less for tires - Buy a lot and sit on them.
FWIW - Outside of wheels, tires are my single second highest seller. I also spend an insane amount on them. Also FWIW - I make rat crap on them. Not really worth the effort or $$.