Printable has a cap per month earning; I think. You can hit that cap monthly; if your models are remaining popular at all time.
One of the same model from MW on Printable, hits almost 5000 downloads and 200 prints with 167 reviews under 2 weeks. You can only earn like 360 points maxed out per model every 30 days. You can only get 1 spool so far and another spool, if the trend continues. Otherwise, it drops off the Earth.
So Printable reward system is very limited. Don’t really care on Printable rewards; I don’t think I would buy anything - still very expensive coming from Europe. I just shared it anyways.