Motorola still sells great phones. Android doesn't have high system requirements and computing power has dramatically increased, become cheaper, and more energy efficient in the past few years, it's not too difficult to build a long-lasting and great phones anymore, which is bad for phone manufacturers because they rely on people purchasing phones frequently.

Even though I'm very tempted to purchase a Moto G or E I can't help but to stick to the Nexus phones though. If HTC or Motorola would just sell phones without custom software and pre-installed applications and would have a 3 year update policy, only then would I purchase from them.

I have no problems installing custom ROMs to keep a phone up-to-date but I really shouldn't have to.