Are they cheaper made and still good enough? YES
By my measure, the newer generation of 10/22's are not as good as the older ones and if you can find an older used one, then go for it. ....
That being said, the current generation is still good enough for me to recommend buying, that is as long as you can live with the trade-offs and are aware of what you are getting. I use to work in the plastic's industry am a Ruger 10/22 fan.
Consider;
There are quite a few contract shops that refuse to do any trigger work, on the new ones. There claim is that the sythetic housings, are just to unpredictable to work on as far as performance.
Sythetics (plastics) are more suseptible to temperature changes, hot and cold limitations that the alum. alloys are not. Not fair but the alum. and steel parts have a proven record, that the sythetics do not.
The new powder coats finishes, are flaking off starting from the inside and propogating out. These powder coats are even applied over the scope base blind screws or some come with mouted bases and then powder coated.
The new triggers, housings and barrel bands are sythetic. The hammer is now a skeletonized, cast, one piece with intragal bushings.
Be Safe !!!