This is a common question; it's even in our searchable knowledge base:
There are a lot of quick answers there, so give it a try.
I discussed this issue with Fr. Jonathan and he said that you have a legitimate question that many agree with you on. He went on to say that priests freely give up the married life to serve the Church. He also thought that this sacrifice was a very powerful sign to our culture.
I searched the knowledge base for you and found these web postings that should help answer your question:
I hope this helps,