The way I see it, rewrites are inevitable so it's best to start with what's most comfortable right now and then deal with complexity creep when the time comes.

The way I see it, rewrites are inevitable so it's best to start with what's most comfortable right now and then deal with complexity creep when the time comes. Unless the app in question is being written for BigCorp there's a decent chance that it'll never hit that level of complexity during its lifetime anyway. Starting out with an SPA feels a bit like killing a fly with a sledgehammer.