[jasonkester]

Easy is good. It's a similar level of effort in most frameworks, which is handy.

The thing is, if you turn it on right away you never get a chance to see and fix a bunch of low hanging fruit optimizations that can really help you out. You don't know about them until you start to run up against scaling issues despite all your caching. Once you're there, it's not any fun to try to go back, find and fix those original bottlenecks, so you don't have much option but to start throwing hardware at it.

If, on the other hand you hold off and handle your first few scaling episodes by making your queries and code faster, only adding caching after you're not seeing returns from that other stuff anymore, you'll be able to go a lot farther before you have to start adding hardware.