Scholarship info is not mentioned in the admit letter. In the mailed admit packet, you'll get the $$ info, and even if you didn't hear of $ on the phone, some might come in the mailed info. That's what happened to me at least.
For info regarding receptions, every area admissions officer sends their own invite so that's why some are cc'd and others are bcc'd. Definitely go if you can. Ross is really good with the free food and drink, and the number of alums who come out for it is really impressive. You get a great feel for the culture at these events.
To those who haven't heard yet, don't give up. There are still a few more days of calls left!