I have waxed and waned in the hobby. I got really bogged down in a 66 Bonneville project about 6 years ago when I bit off more than I could financially chew. My goals took me down a path where my next step is body work, and as you know its tough to do that one step at a time. Once its stripped you kinda have to go all the way. Kinda like sex with a prostitute - once she's stripped...
My dream car (hands down, bar none, no questions) is a 67 GTO. I resisted buying one because A) they're f'n expensive for what boils down to an option package, and B) I never leave things alone. I don't invest in a valuable classic car, I buy a toy. I didn't want to hack up a valuable GTO, I want the car because I want to make it mine.
... so, I remained patient and finally found a 67 LeMans project for which I traded an old boat. Its already half-cloned and it literally has me laying awake at night dreaming about making it my own.
My advice is this... if your spark is weak, don't try to rekindle it by half-heartedly getting some cheap projects, just take a break and keep your eyes peeled for THE car. I relaxed for about 6 years driving an F150 and a Tercel. I tried filling in with little cheap mods to my other cars to make them more exciting, but it just turned into a bunch of cheap CL parts sitting on the shelf for 6 years. The boredom of those two utilitarian vehicles plus the discovery of an affordable dream car came together and I'm back to being white hot.
... the downside? I've already spent 25,000 imaginary dollars on dreaming up this LeMans build 
I'm bringing sexy back
