I keep an eye on the XRP market cap.
It's increasing nice and linearly each day.
Most promising, for me, is the market cap of XRP relative to BTC. Currently it's about 1/5th or 1/6th the size of Bitcoin.
The market cap of ripple relative to BTC is currently more than 1/2, certainly not 1/5th or 1/6th
https://www.ripplecharts.com/