Verizon announced several years ago that they would not be rolling out FiOS to any new areas. Something to do with ROI, I suspect. Spend some time with Google and you'll find lots of articles about this.
If you happen to live on the line between FiOS and non-FiOS areas I can understand why it's frustrating. Unfortunately, Verizon drew the line somewhere and they aren't going to change it.
If you really want FiOS, the only immediate action you can take is to move to an area that has it.