Bitcoin could fail and collapse, or it could reach sustained mainstream use in everyday transactions.
Given the former, there isn't any amount of bitcoins you could hold on to that would make you "the new wealthy elite".
Given the later, it's conceivable that 1 BTC could be worth $100,000 someday. In that case, 30 BTC would be worth $3 million!
Maybe you want to say $3M in 2013 USDs, otherwise, we are not sure where USD will be inflate/deflate to.