Well, I think your question is in 2 parts:
1- Am I eligible for the PMP?
2- Is the PMP good for me?
To answer the first question, it might be that you're eligible for the PMP, provided that the activities that you're doing are mainly done as projects. You will need at least 4,500 hours of diversified project management experience. Do you have them?
To answer your second question, the PMP will be definitely an asset for you as it can propel you into an IT Project Manager position, where you will most likely make much more than what you're making at this moment.
You haven't mentioned what your position is in the company...