Of the various wine expos in Boston, this one at the expo center is my favorite (it's the biggest!)
Tickets are $95, though you may be able to get $10 off if you use the code INTERMEZZO (not sure when it expires). There's two days, so make sure to select the Saturday date when buying your ticket. Yes, it's on the pricier side but totally worth it in my book, there's like 1,000 wines there and other stuff too.
Go to the website for more info or to purchase tickets http://www.wine-expos.com/wine/expo/ They're selling fewer tickets this year to control the crowds, so get your tickets now as they could sell out well in advance.
We can figure out linking up plans as it gets closer (hard to find people once inside)