I don't think many think to check Accessories4less for HDMI selection, but they actually have an impressive selection including extenders and amplifiers.
Some of the pricing gets into snake oil territory, but if you know/understand what specs you need, I think you can get some pretty good cables out of them!
www.accessories4less.com
Here's a great deal if anyone needs a 320 foot cable! Discounted from $1380 to $110!
Better hurry! I'm sure these are just flying off of the shelves!

Seriously where would someone have use for a 320 foot HDMI cable? I guess maybe if you put the source in the center of the football stadium (to one side of the field, it would reach the screen in the end zone (1ea to reach each end)?
www.accessories4less.com