also depends on what pin you buy.. if its something bally williams like addams family or star trek, you likely to find parts you need longer than you or your kids will live. but if you buy one of these new boutique pins, you might might have a problem finding parts in 10 or 15 years. if you have one of those old allied leisure cocktail pins, I dont think you could find parts for them 40 yeas ago..
but videos will be easier to keep going by far.