You have to be there to truly experience it. Also, being an international investor (that is those outside U.S & Canada) you get a meet and greet with Warren & Charlie.
There is no other agm that compares. The good part is, you get to meet other BRKers and there are thousands of stories swapped over the weekend.
The good thing about BRK.A/B is that you really only have to look at the stock valuation on a yearly basis!!