Everybody is crazy about the Fish Cat tubes. I don't know much about them. They do cost more. I have a Creek Company ODC 420. It has a very large capacity and is really big. I got it for $129 on ebay, and I am very happy with it. I feel like it's super reliable. Floats high in the water, and it seems very rugged. The seat is not inflated, but I tie on one of those $6.00 seat PFDs, and my back is a comfy as can be (learned all these tricks from Vortec_Cruiser). Here's on on ebay bidding at $99.00:
http://www.ebay.com/itm/Creek-Compan...item3a772395f3