Ron, like I tried to tell you on your other thread about Platine, it's $5.24 a sheet at Stephen Kinsella everyday, and only 5.06 a sheet if you buy 25 sheets. Shipping isn't free, but it certain can't negate saving $3 a sheet, unless of course you only buy 1 sheet at a time. They ship in tubes so the coast is reasonable.
Daniel Smith makes great watercolors, but their prices for papers are stratospheric. You can get the double elephant size 30x44 Platine for only pennies more than what Smith charges for 22x30.