It is an investment for certain.  I put it off until three years ago and phased in with the module that Futaba put out for the 9C.  Then I got an 8FG and retrofitted a model every few months until I was all 2.4gHz (and Futaba upgraded the software so it's now a 14 channel).  I added a Spektrum 6XDi for my little guys.   

Not waiting for the pin on Saturdays or at events is worth as much as the other advantages combined.