Exactly what it says on the tin. The option to purchase an additional /home on an ad-hoc basis from /shop, at some appropriately expensive price (though please not as outrageous as a spawner!).
Even if the website store goes back up at some point, this would be nice for those who find themselves needing an extra /home or two, but not as many as, say, the 15 that used to be on the site.
What do y'all think?