You need the computing power when you need it, not when it is available. Buy the best you can afford/justify as need dictates and then get on and use it and make some money with it. There will be always be a better MacBook Pro down the way. That's the nature of progress. If we all waited for "the next one" then no-one would buy, and Apple wouldn't sell anything, and there wouldn't be a next one. Crazy logic.