I also believe for this if the ripple for the future will be even greater, now all coins are in an unstable condition, of course, it takes time to get better, as well as the ripple
Yes, ripple has been good enough when it comes to the rise and the market cap and supply of the coin.
I hope and expect ripple to rise in 2019 and I think it will for the way t had been in sort of contest with ETH was impressive.
Hence, the purpose of speculation is to make money if things are going in a good direction and as far as ripple is concerned, the market for the coin will boom in future. Better go for it.