Yeah I agree the OS upgrade is different, but it is somewhere on a spectrum right? > If it depends on a network service that isn't included in the purchase, th

Yeah I agree the OS upgrade is different, but it is somewhere on a spectrum right? > If it depends on a network service that isn't included in the purchase, then it's definitely not a thing you purchased Not sure if this is what you're referring to, but there's a distinction between services provided by the software supplier, and services that aren't. Example, could a Twitter client (RIP) be buy-once? Well, yes from the supplier, but no because Twitter turned down their public API access. I think a Twitter client could be sold in the spirit of buy-once. The clearer case though is something like LocalCan, where it depends on a service provided by the supplier, and that could go away, and I think therefore shouldn't be classed as buy-once (although this is not something I'm decided on, hence looking for input here).