Subscriptions are only okay for me if it's done like Jetbrains does it, where you can keep the old versions permanently. Partly because it implies what has to be true for monthly payments to make sense: that the software keeps getting better and keeps getting support for various tech advances that happen and tools and databases. If I'm paying monthly for something that doesn't cost them anything then that feels illogical on my side. This should become a thing with online services too, at least let me keep some kind of upgraded version of your service after I stop paying. Something please, anything to make me feel less like a chump for having paid and then ending up with nothing in the end.