Yeah, it is definitely OCD for me. Part of my dog like personality. 26000 posts, oh yeah definitely a metal illness.
I started out interested in making my house more efficient, step one of going PV solar. (which I still can't afford the financing for)
Then I started looking at converting a car. Doing some quick math, I realized the big hill climb up from the town was going to be tough on lead. So I looked at lithium. More stuff that looked real expensive.
Then I looked at converting a motorcycle with lithium. Still pretty expensive. At that point, I still had never heard of an electric bike. Then I saw an ad for Wilderness Energy kits. Lies all over the page but I bought the kit. Which disappointed me unbelievably. ( poor range on the lead) About that time another search for lifepo4 turned up V for voltage, and discussions about some new guy in china selling lifepo4 named Li Ping. That fixed the range problem. I knew all along lead would never get me all the way to work and back.
Next thing I know, I'm sending money to china, and my wife thinks I just got suckered really bad. And I'm spending 4 hours a day reading the V and then ES. That was the summer of 08, gas prices went crazy, and I was laughing my ass off every time I rode by the big line at the cheaper station on my ping powered ebike.