I'm not sure about dayco ($45) but I rode with a carlisle belt from dennis kirk last year.
they have a $48 version called the max drive, a ultimax 3 belt that is is around $75 but currently on close out for $56.24 (ultimax 3 changed to ultimax pro 47.99-82.99), and the ultimax xs belt that is around 112.
to me these compared with the polaris belts that were 65,110,and 169 respectively.
I rode with the ultimax 3 on my doo 800 last year, about 1100 trouble free miles, and kept by bombadier belt as a backup.
The carlisle belts have a 1 yr warrenty and if you shred one, they will send you a new one, have a buddy who's had to warrenty one and seemed to work fine. His only blew after 800 miles or so.
https://www.denniskirk.com/search/snowmobile/carlisle.q