I think it ultimately depends on what the OP is looking for out of his device. For some of us is about the constant tweaking and tinkering that goes on (i.e. new leaks, hybrids, etc). Some other folks demand absolute perfection out of the box, which for a new release device its almost impossible.
In addition, the technology will keep moving so if you wait new things will continue to come out so one has to take the plunge at some point.