I have an upgrade question. My two bikes are an early 2000s Bianchi Eros (Steel everything, Campy 9sp Mirage/Veloce mix) and a 2014 Bianchi Intenso 105 10sp. My question regards the Intenso. It is not that much lighter than my steel bike, maybe two pounds. However, I have some nerve damage in my neck and arm that makes it so hauling my bikes around my building can be a bit painful. I really notice the slight weight savings on the Intenso. Roughing out the specs, I believe I can shave another two pounds off this bike by swapping in a Sram Force 22 groupset and a set of lighter wheels. (I choose the Sram because of the quality level, low weight, and there are some good online deals around.)

I bought the Intenso used a couple of years ago. This upgrade would cost about $1,100 in parts, with new tires. So, I'd have $2k into a 2014 bike. Is this crazy? Would a future buyer appreciate the upgrade enough to pay more for the bike than the blue book on a 105 bike? I only know motorcycles, where the answer is usually "no, he'll pay less". I really like the Intenso but wish I'd gone with the higher spec model. It seems like a great frame with some clunky/heavy parts in this build.