I'm probably a little more "over the top" than most here as a competitive triathlete:
Cervelo P3C (carbon TT bike) w/ DuraAce drive train
Cannondale Super Six (carbon road bike) w/ DuraAce drive train... full carbon all the way down to the bottle holders.
Race wheels are Zipp 606; Road race wheels are Ksyrium ES Special Edition (with the super cool red hubs!)
I train with a PowerTap on my Mavic OpenPros.
Clipless pedals - Speedplay Zeros on both bikes. Set of Sidi T2 tri shoes and Shimano 330 road shoes. Two helmets (aero and regular).
Yeah, I'm over the top... but, this past weekend, I qualified for Team USA for the World Triathlon Championships in Chicago next September. Spend your money on experiences, right?
Considering working as a wrench at a local shop in retirement. I do love tinkering with bikes!