Nobody needs a $500,000 '58 Les Paul to be a good guitar player. Used instruments are priced because of supply and demand. If you want a '58 Les Paul, Buchla, Wiard, or whatever... start saving. In the mean time make some music. You'll figure out how to do it with what you have and as you start making more money you'll buy the tools that you want to do your thing.
In the mean time I'll do my part to drive up prices in the vintage guitar and synth market because I love to play them, I use them everyday for work, and partially see them as a retirement fund one day. I play them first but the fact that they go up in value doesn't hurt either.
Start whining.