Very helpful, thanks for taking the time to write that all out. I know there's no right or wrong answer, just looking for some opinions. My goal isn't to turn either into a dedicated track car - I just want to get started down the HPDE road before buying a dedicated race car. Although I don't currently have a car trailer, trailering and storage won't be a problem once I get there.
I'd love to get into Spec E46, but there is a large difference in upfront cost between that and Spec E30 even if running costs aren't dramatically different...but I might be getting ahead of myself