> If I buy a game I should be able to launch it and redownload it.

unfortunately, this is not the right for which you paid, despite the fact that it is what people believe when they click purchase.

That's why i condone piracy. It enables preservation, regardless of the choice of the copyright owner.

That's why i would always want to make an offline backup of whatever i buy. It's hard to do sometimes, and the onus being on me to do it is a failing of the consumer protection laws that did not evolve with digital purchases.