21 BTC
200 LTC
You already are rich. There are tiny amount of people owning 1 BTC. and almost none own more then 20.
Better question would be: I own 0.21 BTC, will i ever be rich?
The purchasing power of 21 BTC does not make me rich, in anyone's standards
Not in anyones, but in manyones. You can never satisfy everyone all the time. But here you do many.