Looks like tire prices are destined to rise again next month for 2 manufacturers. The Yokohama article mentions only increases in certain sizes but it's inevitable that price increases will probably occur across the all their sizes eventually. The Cooper article is interesting because it appears they've already raised prices earlier this year. I know Goodyear & Firestone/Bridgestone raised prices a couple of months ago.
It never ends.......
http://motorage.search-autoparts.com....jsp?id=533896
http://motorage.search-autoparts.com....jsp?id=533267
http://motorage.search-autoparts.com....jsp?id=533562