I would have thought if a 150 fits your bill now is a good time to buy - or at least very soon.
Prices are near to rock bottom although I suspect they will fall further.
Lest it be forgotten the 150 is still good at what it does. Buy one as cheap as chips and be prepared to spend perhaps double again and you could have a beatiful aircraft for a whole lot less that its modern day replacement (the Skycatcher).