Hi Chris,
Welcome to the Dark Side.
Sorry I don't know much more than what you probably already read on the forum, so I can't help you. I think Detour's answer is about the best you will get : it's all about your feelings, and yes, the Gallardo is far to be a "classic" and the market price will go down and down until then.
Anyway, I'd like to hear what you think about the AM Vantage. Is it the "new" V8 Vantage we're talking about ? I'm planning on getting one before the end of this year (with e-gear, by the way) in replacement of my daily driver in Europe, (a 8 years old TT Quattro Roadster) . Do you like it ? did you have any particular problems with it ? I tried to subscribe to the AM Owners forum, but these guys are just like us : they are all in love with their cars, so it's hard to have a "cold eye" and honest opinion about it Any info and feed back is welcome before I go sign my check
Thanks