It occurred to me that I'd play around with stuff a good bit more if I didn't have to shell out as much money. This made me wonder if there is an Arduino emulator or electronics emulator that includes an Arduino that I could plug in various components (or design them) and then watch the pieces interact with each other. Have you heard of such a thing?
In the end, I'd probably end up spending more money on all the cool things I've built and now want to see in reality. :-)