You can't get seriously rich from scratch unless the value of Bitcoins goes up to a lot more than $10 per Bitcoin. There are those who have envisaged the BTC as worth 100's in the future, requiring a break-down into useable fractions...it all depends on how widespead will be the uptake of the currency. Also worth note is the fact that BTCs are being lost all the time due to crashes and such likes...the true number of BTC by 2030 should be well less than 21 M. Scarcity increases the value evermore.