The other problem with repairing things is very often these days there's no where to buy the parts from. You can try buying a broken version of the thing you want to fix, but you're gambling on whether the specific part(s) you need will actually be functional. If the thing you're trying to fix is expensive then a broken one is likely going to be in a similar price range, and if it's not expensive there may not be anyone selling a broken one since it's not going to be worth the time or effort.