Dig Eric Hahl's mini z collection.
I had a hard time convincing myself to collect static cars. Otherwise, there would be no end to the acquisition phase--there are always more cars to collect! So I thought let me at least collect stuff that moves, so they don't just sit there on a shelf. I started finding slot cars with liveries I liked. Of course, once you start collecting those, you find some you use on the track and others you just save for a shelf--so they wind up being static, anyway. Oh well. (But hey, they could if I rrally, really wanted to, right?) I was fortunate enough to get a couple of the Porsches signed by their drivers at the last Rennsport.