It's a blast hosting a tasting.
Just finished my second one a few weeks ago and tasted some great stuff. It's a great excuse to raid my collection.
The 4 Copas Reposado is pretty good. If you can get the Casa Noble Anejo (4 years) it's incredibly smooth. My in-laws call it medicinal tequila because they drink it every night before going to bed!!
Wish I could help you out in Buffalo, don't know much about the places there. Will online ship to you??? There's a Wine & Liquor Depot in California that has a great selection of tequilas at reasonable rates
http://www.wineandliquordepot.com/index.htmWould love to crash your party, let me know if there's anything I can do to support you with the event.
Enjoy Responsibly!!