I have been following this thread with much interest over the past few days. I have actually found myself reading this thread more than once a day, and reading the whole thread each time. I then hit the "Reply" button several times, started with a few words, and basically didn't know what to say. Not sure why, but it's been quite a while since that has been the case for me.
I have actually been thinking about it for quite a bit, and just can't put my finger on why.

Unfortunately I still don't know what to say, other than that skye1 did an excellent job summarizing the different types of Do's!^ There are advantages and disadvantages to each type, as I have learned from organizing/attending every type of meetup he has mentioned. I'll leave it at that.