My rule: watch for releases closely; if you don't like the new product, be quick to get the former one, unless you want to wait another year+ .
This is what I have done with the ACDs of yore. At this turning point it's a very good idea to wait and see since you have the cash for new and current, and when the update does come you can grab it if it suits you, grab the previous model at a discount, or grab a 3rd party, comparable product for a little less or more.