Here's an easy way to value what the top crypto currencies are really worth.
Major tech companies like Apple and Google have around 100 billion market cap each so I'd expect the top platform coins like EOS and IOTA to match 100 Billion market cap each. Bitcoin is more like gold so if Bitcoin matches golds current market cap that would be 7 trillion USD.
Here is a comparison of current crypto:gold and crypto:tech companies by market cap.
Bitcoin Current Market Cap 200 Billion to Gold 7 Trillion = 35 x increase to go
IOTA Current Market Cap 13 Billion to Microsofts 100 Billion = 9 x increase to go
EOS Current Market Cap 2.5 Billion to avergae tech company = 25 x increase to go
So that's my quick analysis of the current values and they should be heading.
Also you could add extra market cap for the improvements they make over current techology.