I hope the following doesnt dissuade you from rebreather diving. It is based on my personal experiences. I am happy to say that I am now in therapy and have reduced my diving to 200 dives per year.
1) You will enjoy diving so much more that you will have little time for anything else because you will be diving every spare minute.
2) You will make enemies with your dive buddies because they will be jealous.
3) You will be forced to be rude to your existing dive buddies and blow them off because you will find noisy diving that scares everything away is not as much fun as you thought it was.
4) You may suffer from brain ache because you will learn a great deal about physics and physiology and find you can not stop thinking about it.
5) Your lover will leave you because you are never home any more...you are out diving.
6) You will be forced to sell your car to buy another rebreather just to keep your lover.
7) You will be berated on every dive boat you go on because you will always be the last person out of the water.
8) Your house will become extremely messy with even more dive books scattered everywhere.
9) You will live in constant fear that during one of your dives you will injure yourself when you bump your head on a big fish that didnt know you were alive.
10) You will squander your retirement and be forced into a life of poverty because one rebreather is never enough.
ity_part