Minicon and Boskone remind me a lot of each other. I think there's a considerable overlap in attendees and of course some details in their histories are similar. Both experienced a small drop off in numbers after a clarification of their core mission, for example.

Now, Boston and Minneapolis don't seem much alike. For one thing, the MPLS airport doesn't resemble a converted bus station, nor have I ever feared for my life landing there, whereas Logan scares the hell out of me.