This way, traditionally you are also charged for every additional exporter, and when new major versions come out, you're charged all over again. So it's not quite one payment and you have it forever. With the subscription, you're guaranteed all these updates (and I think it would be a good idea to include additional exporters) with that. It could even work out cheaper in the long term.
I thought exactly the same thing as Neo1000, i don't like the subscription idea. It also seems a bit odd going from a free software to one where you pay more than Game Maker but then 2 years later don't actually own it. I would rather pay ?150 or something and then pay ?20-30 for major updates and own that version forever which you DO have with MMF2 because you are not forced to update as there is no time out on the license.
MMF2 has been getting loads of updates and they are all free and also there is lots of free extensions, and the HWA version was also free. The exe, screensaver, java and java mobile exporters they have are all free also and the flash exporter is fairly cheap. Clickteam might have reduced upgrades for V3 also for older customers.
I would be happy to support Scirra with a payment of ?150 etc but only if i actually owned the software after that. With subscriptions it just seems like a large donation with bonuses but time limited so i actually much prefer the system Clickteam etc use than that idea.