Robz,
Hey man, waterdogs here. We had the same choice, of course my circumstance maybe a little different, mainly do to my future wife. We went private here in charlotte. I had scheduled to do our entire OWC for our honeymoon in St.John, well, that didnt go over to well and she did not want to dive at all.
When I asked the board here for some recommendations, they highlighted the benefits of doing all our work here at home. I went one step further to make sure she was totally comfortable so we did Private Lessons.
Benefits:
Personal attention - no 14-16 students and if she or I had trouble then the instructor could give us the time to perfect skills on our time, not other students alloted time.
Scheduling - we wanted to take classes when WE wanted to and the time we wanted to. Now we had to work around the instructors schedule, but it fit ours most of the time.
Costs - Well, regular classes were $145 pp, privates were $250 pp so that becomes YOUR deciding factor. For me, yes indeed a little more expensive, BUT, my future wife has taken to diving and enjoying it where if we did the regular class or our OWC like I scheduled in St.John, she probably would have hung up the FINS.
So, to me, it was worth it. We have our final class wednesday and do our OWC in FLA next weekend.
Our first boat dive is scheduled for May 20 in Islamorada.
Hope this helps.
waterdogs