That's a good point, I haven't published anything on the App Store in a while and I'd forgotten that failing to renew the Developer Programme results in the app

That's a good point, I haven't published anything on the App Store in a while and I'd forgotten that failing to renew the Developer Programme results in the app being pulled from the App Store. I'm not sure why, but I figured that the app would still be available for download by existing users from the "Purchased" tab. In that case, I suppose I'd have to recommend purchasing directly from developers, with the caveat that I have more faith in the licensing mechanisms for apps that are _actively_ supported and purchased from the Mac App Store than for apps that are _actively_ maintained and purchased directly from the developer. Either way, I've only had one or two issues with third party licensing mechanisms, so I suppose it isn't a big issue at the end of the day. Only other reason I'd recommend purchases from the Mac App Store for users that aren't technically inclined would be features like required sandboxing.