I couldn't imagine collecting laser eyes, but then again, I think your collection only costed about ten times more than mine, but in the beginning I didn't really have a clear direction and I probably overspent.
Although, I am in the same boat with one of my hidden collections, I'm trying to collect all of one trait and I'm at the point where people are either refusing to sell or they're asking for me to buy them a new car and this was suppose to be a cheap attribute to collect.
I am really glad that you are running these challenges, so thank you very much!