I regret sticking with my ISP router for so long
Open yourself up to networking nirvana.

I've been on the internet for a long, long time, long enough to remember when dial-up was the only way to get home internet connectivity, and using the modem that your ISP supplied was the best shot at a stable connection, and Wi-Fi was still a ways off. When I eventually got broadband, I also kept using the ISP-supplied router, partly out of habit and partly because I was told I'd lose access to functionality if I didn't use it.