Normally this would be a question only meant to infuriate but given that we're talking about a digital game store where losing the store means your purchases are gone (unless the devs start handing out Steam keys as the end approaches like many games did on Desura) and stores shutting down isn't unprecedented this is a major issue of trust. Fortunately it's not tied to a hardware generation so at least it won't become automatically obsolete like, say, the Wii shop.
How long do you trust the store to stay up and is it long enough for you to tie purchases to it?
How long do you trust the store to stay up and is it long enough for you to tie purchases to it?