I doubt very many, BTC and LTC included, unless the owners happened to go into a coma and not wake up until their BTC and LTC were trading at their peaks.
I think history would show most the richest in btc/ltc are those who believe in cryptocurrency and aren't in it for the fiat (and funnily enough there are many of us).
True, but I think there is a point where any additional wealth would have little benefit to one's lifestyle and finances and this combined with the inherent risk that cryptocurrencies have (e.g. recently demonstrated by Litecoin's plunge from $48 to $5), would make it the rational choice for even the most hardcore crypto believer to convert some back into fiat.
For example, if you had $5 million, would your quality of life really change if you had another $1 million? Someone who invested the full amount of 1 BTC in the NXT IPO back in November 2013 would have been sitting on a NXT stash worth $5 million during its peak. In this case, wouldn't you have converted, say $1 million of that to fiat if you could?
It's a known fact that the creator of Litecoin, coblee, sold much of his stash when it was still worth cents:
Thanks! Unfortunately, I don't have that many litecoins. I sold most of them at $0.20 because I thought they were overpriced then. Tells you what I know.
Link:
http://www.reddit.com/r/litecoin/comments/1rl63z/from_the_bottom_of_my_heart_thank_you_coblee/
