You can already see the effect on some other things that were collectable,and changing hands for large sums a few years ago.....old tractors being a good example.....lot of them are now being sold for scrap......Steam stuff reached astronomical heights a few years ago too,but it sort of marks the owner as a millionaire......but prices are coming off from very high levels......Bikes have also suffered from safety aspects.....mainly due to the young car driver not paying attention to driving,while giving 100% to the next text/call/facebook/etc.