SRAM Force?
I have the opportunity to get a SRAM Force group, minus the brakes, from the manufacturer as part of a team deal. I ride a 2005 Trek 2100 with mostly 105 components. I'm not good at wrenching, but my LBS says they can switch the components on my bike for around $100. The group would cost me about $600. As a pretty much recreational rider who averages 75 miles a week, is it worth it to upgrade my 105 to SRAM Force?