I may be way off but it seems like the Home Cheapo Cubs are good for about 3 years. So at that rate you would have to buy about 16 of them to last as long as my O has up till now. Problem with this calculation is that my O runs as good as new even being 50 years old. I'm pretty sure the O will out live me. They don't build them like they used to couldn't be more true.
