Here is what I found. I priced a high pressure 100 cu ft tank.
World Water Sports $325 (plus shipping...?)
Dive Sales $280 (free shipping)
Dive Sports $340 (free shipping)
Scubatoys $300 (plus shipping....?)
EBay (new tanks) $300 (buy it now plus shipping)
I bet if you called scubatoys they will give you your scubaboard discount and they will be comparable or cheaper than Dive Sales.
World Water Sports $325 (plus shipping...?)
Dive Sales $280 (free shipping)
Dive Sports $340 (free shipping)
Scubatoys $300 (plus shipping....?)
EBay (new tanks) $300 (buy it now plus shipping)
I bet if you called scubatoys they will give you your scubaboard discount and they will be comparable or cheaper than Dive Sales.