Buy stuff off Buy/Sell Used Outdoor Camping and Hiking Equipment at GearTrade.com - #1 in Outdoor Gear Exchange
by seller "back country" only.
You could buy a lot of good stuff for cheap in the offseason you just have to look.
No need to buy cheap low price point stuff.
Snowboard industry has one of the highest retail markup, you can buy boards over 50% off in the off season and up to 80% on lots of the major brands like DC and Nomis stuff off Whiskey Militia.
Because you have a pipeline of kids, you might as well buy good boards that you can pass down for 3 seasons.
Look at the mervin boards : roxy, gnu, lib-tech, for mtx magnetraction for ice. smokin snowoboards.
For really good deal look at STATUS Snowboard Company
and use the code (save30now) for 30% off sales prices. Boards go as low as $110. Boards pressed by neversummer so quality is there.
otherwise just read the forum.