what price of an altcoin is, is not really that simple to say if it had X supply then it would be worth Y dollars. there are a lot of things that can affect that. from logical factors such a supply, the project itself, devs, adoption, ... to some illogical and weird things such as how much they hyped it up, how much they advertise it, which exchanges are listing it, is there easy wallets (light wallets and web wallets) available for it.
as for supply, they keyword that you should pay attention to is "circulating"! for example is 38.7B really circulating in the market or is it just a number of coins they have released but the real amount that is available in the market (to users) is a lot less?
i don't know much about ripple but i see it is not using the conventional methods of distribution such as mining reward, airdrops,... instead the company releases large amounts of the coin out of thin air whenever they want. for example they did it when XRP was at its highest this year.
or other coins have pre-mines where the devs own the majority of the coin but you see all of it as "circulating" whereas most of those coins never hit the market.
Yeah I remember back in May I did read a lot in the forums and those who had no money all talked about, Dash, Ripple, Ethereum, & Litecoin. So when you look back in May the prices of these were pretty much lower then what they are today. Dogecoin was one of them as well.
Right now I see Tron, and Verge going pretty good in the last week. I so wanted to get verge back in may like $100 worth of it. Would of been nice on the amount in dollar price today. I was thinking buy each coin under 1 cent for $100 and spent very little on them what's a $100?
Also if you ever got $100 of every coin that is on the top 1372 list that's $137.2k you would of been a billionaire by today. Lots of cash to be made here that's for sure. But the more you get into it, the more you end up learning about it. The hype part yeah I feel that. I also read last night those who started a coin, also did start other ones and they are the fathers of it etc. So no idea really.