new bike v upgrade any thoughts?
i have a specialized allez sport 2009 with tiagra groupset. This is first year back cycling after many many years but am well and truely hooked. I've been considering an upgrade to the allez v a new bike (possibly ribble frame) and are aware some bargains are bound to be had soon given 2010 stuff in shops now/ very soon. if i was to go for upgrade to allez i'd probabily go for ultegra groupset (from merlin cycles at under £500) plus improved wheels. is this better option than carbon frame? any ideas?