I needed to see how deep I've gotten in 3 years.... I'm going to do just my bikes. My wife has also started racing and she has a road and tri bike now too. However, I really like to search for deals. I've purchased all my bikes new but at significantly discounted pricing thanks to mybikeshop.com (I seriously love those guys). I buy most of my parts there too. I've never paid more than 70% MSRP So, total purchase price for Road, Tri, Gravel bike, HED wheels, 2nd set gravel 650b wheels will bring me to 5.5% based on 2020 AGI. Now, that doesn't include a lot of small parts or powertap pedals and all those consumables. I probably am sitting more at 7% when you including all of those little upgrades like GP 5k tires, rotor Q rings, tririg cups, and all that kind of stuff. The only thing that is kind of nerve racking is every bike I buy is getting a little more expensive every time (electronic shifting sounds pretty sweet right now).
https://www.strava.com/athletes/23685202