I want to buy from the Frictional Games Store but it seems to be a bad investment

[popsUlfr]

Since you can do that, why don't you just go and do exactly that?
Hint: http://store.frictionalgames.com/

Edit: In case I misunderstood and you already knew, then you have my apologies, just wanting to help.

I was just stating my general approach to purchasing indie titles, as a matter of fact I pre-ordered Amnesia directly from the frictional store!
But I appreciate your kind gesture of informing me, so no apologies needed