Both ringed and non-ringed glow engines will last for a very long time if run at the proper fuel mixture (not too lean). I have had an OS .46 glow engine (no ring) for over 10 years and hundreds of flights. After about 10 years I had to replace the bearings. But not the piston or cylinder liner. Hosnestly I would not use the "ringed vs ABC" property as a buying decision.

The use of bearings vs bushings is much more important. Bearing engines typically put out more power and last longer.

Another important factor is the carburetor. I avoid "air-bleed" carbs and insted buy dual-needle-vale carbs.

Typically the lower cost glow engines are characterized by these factors: Bushings and air-bleed carbs.
Higher quality engines are characterized by: Ball Bearings and two-needle carbs.

ABC and ringed pistons can be found in both high-end and low-end motors. OS tends to make a lot of ABC (or ABN) motors. Supertigre likes to make ringed engines, etc.