First, I would talk to your planner. Our reception was at Ariel's in August. When we met for a site visit (and in all initial info) our pre-reception was at Martha's Vineyard. However, when we got our contract we learned it would be in the lower level of Ariel's. While it wasn't a big deal (and turned out nicely), it wasn't what we were told originally. So make sure that if you want Martha's Vineyard that you make sure that is what you are getting. It may have been that we had too many people for the space (still under 45), but we had a larger number when planning and told we had it.
Second, we had the premium cheese display and fruit & dip for about $750. It seems like a lot, but it was well worth it for our 11am start pre-reception. Most of our guests had skipped breakfast (including hubby and I), and everyone enjoyed the snacking until lunch (which wasn't until about 1 or so I think?). There was no additional fee for the pre-reception location because it was the same room (different area).
Hopefully that helps a little. If you have ANY questions, or want to see some pictures, let me know!