No doubt about it, I would take that pill. I've only been deaf for a few months, and I've learned alot in that time, but I would go back to full hearing in a heartbeat.
When people's reaction to hearing that I'm now deaf is "Oh, I'm sorry", my response is often "Don't be sorry - I'm not". I value the experiences I've had since I became deaf, and the lessons I have learned about different perspectives and abilities. It still surprises and pleases me to find just how friendly and accomodating people can be. In fact, I often say to friends and coworkers that I would recommend deafness for anyone - as long as it was reversible after a month or so. So I'm also in favor of the second "fantasy pill" to cause deafness, but for the opposite reason from Shel and others.