Nice feeling to have Admiral shares! I only have like $17K, but I put it all in Admiral shares of the Total Stock Index.
I actually have Flagship service because my grandfather is a millionaire. Makes me feel special.
The other thing I like about Vanguard is that they always address me as "Mrs. [FP]." Call me old-fashioned, but I don't like when strangers that I'm doing business with call me by my first name. In fact, even the website always says "Welcome, Mrs. [FP]."