I'd encourage you to let 'em be.  

If they're happy with boards at $20/GH, then more power to them.  The bitcoins may not come flooding in by the time the boards are running, but they'll come in at some rate, and participation in the network is -or should be- its own reward.

Also, while dwdoc has received his chips, it looks like some of the group buys have shipping date around the 30th.  It's really too early to put the post-game show up yet.