And what if their next platform is insufficient for your needs? Then perhaps you'll wish you still had Aperture as an option, but it'll be an obsolete application with no chance of revival.

Why are people downvoting your comments? Is there a pro-Apple, anti-FOSS element here?

The more time I spend on web sites with voting, the more I think upvoting should be the only option.

Honestly, I have no idea. Once you've spent a bit of time on HN, you realize it's no better than reddit when it comes to voting.