I bought my Nokia 635 for $50 off Ebay and still use it. I've hated all Android phones I've used before, so dont want to switch unless I can no longer handle it

I bought my Nokia 635 for $50 off Ebay and still use it. I've hated all Android phones I've used before, so dont want to switch unless I can no longer handle it, and I dont want to pay premium for Apple. The WP OS is pretty awesome, and the phone is rock solid. I use an old Nexus 4 which I never liked for Chromecast purposes, a standalone GPS, and WP for everything else. It works just fine.