I would stick with namecheap (for now) and pony up for a multi year registration. If in 5 or 10 years they are jacking the price up then you can use another registrars cheap port option to get a discount. I did this recently between godaddy and namecheap. I had one domain left with godaddy that I have owned for over probably a couple of decades at this point and they were seriously jacking the rate up on me, I ported it to namecheap for a massive discount.
newcockroach