I can relate on hobby funds. Back when raising the three kids, there wasn't a whole lot of extra $$ so I used to paint brass steam engines for extra income.
Now that they are all gone, the house and vehicle paid off and, the best part, retired, I can buy more stuff that I 'need'. It's amazing how much extra money you have to spend once that mortgage is paid off.
ps: I updated my previous post routing to youtube on one of my rc planes.