Actually, there are more Marlin 60's out there than 10/22's. A lot more. The 60 has been in production for many years longer than the 10/22. Being popular, and being available for many decades, equals high numbers in the hands of shooters. It could be that looking at a short snapshot in time today, a 10/22 is more likely to be sold than a 60 (i don't know if this is true or not), but over all time there are tons more 60's out there than 10/22's.