I think I'm just reeling from the cost of it all - previous costs of an occasional bottle of shampoo, a sponge, some cloths, wax and a chamois haven't prepared me for the wallet busting week of furious ordering I've just had! Definitely agree on the hobby aspect, £100 in those terms is very good. In my (currently temporarily suspended) running habit, £100 was regularly spent on replacement shoes, then race entries, physio, technical clothing etc so completely get that.
Did notice water spots on my old Audi which was black, hopefully the red of my Golf will be better. It just amazes me at the moment the variety of things to consider in an activity I'd previously never worried about! I'll definitely get some pictures once I get going. And (having seen your posts on another thread) congrats on your imminent arrival!