I have four: one HP 130, one LP 95 and two ALU 80's. Only one of the tanks, an ALU 80 was bought new. I want to sell the 130, its just too big for me. I'd like another LP 95, filled to 3,000 PSI, short and fat, it's a great format. The local spot I dive the most charges $8 for a fill. My LDS gives me better fills for less, and they mix nitrox (membrane system) and trimix (not that I use trimix at this point). Having a known quality tank, with known servicing, convenience and the ability to get good fills, makes owning my own tanks worthwhile.