I'm disconnected, I suppose. I typically expect to spend about $200 total on the model, and the engine, muffler, tank, prop and spinner are beyond that. I've always been a cheap bastard I suppose; at one point I was saving my balsa dust..
But such things as gear and wheel pants, I just make myself, electra lite wheels, 1/8" music wire, balsa. I guess I am also ignoring thin CA which I buy in a large bottle and use blood pipettes, and of course 30 minute and slow epoxies, and epoxolite. I make my own custom control horns, expocranks, control rods (years ago I got a huge supply of fiberglass arrowshafts and a couple of square feet of scrap aluminum sheet as well as 1' square samples of 1/8" nylon, PVC, and other plastic sheets), and cut out my own 1/8 aluminum New Mexico Universal Engine Mount Pads. I have hundreds of items like 4-40 bolts and blind nuts, as well as assortments of small hardware that I have left over, when I would buy 10 or 50 or 100 when I needed one. (This is why my garage and storage are full of stuff too..)
Also, I have probably four dozen sheets of medium and heavy silkspan on hand, a box of 1/8" OD brass tubing, etc. As well as stockpiled sandpaper, nitrate dope, clear butyrate, and on.
So, maybe if I counted all the supplies I keep on hand and actually use, my true costs are more. But nowhere in the rarified air where you guys are. But, then of course, I don't have the quality piped and 4S engines you do.
However, there is one thing I have learned about this hobby (and any worth having), that it does not need to be justified on a financial basis. That goes for motorcycles, guns, etc. right down to watercolor painting supplies.
L.
"There's no problem that you can't add some guilt to it and make it even worse." -Calvin and Hobbes