I own more engines that need magnetos, like websters and wico eks, than I own that have the correct mags. It seems to me that the cost of these are now more than I paid for the rest of the engine, and these are common mags. And, then you may have to buy the bracket, rebuild kit, etc. In the long run, are there more magnetos than engines, less magnetos than engines, or exactly the right amount? Just kinda wondering what you guys think.