The easiest way to make Dash more attractive and make it easier in calculations (since it's going to be a payment system) is to multiply all Dash by 100 or 1000
Then 1 Dash would cost at the moment ~$ 1, which is convenient for payments, because you don't have to think how many satoshi of Dash is $1.
Additionally, Dash will automatically be in the top 5 in coinmarketcap.


Another issue is the psychological barrier.

Currently, to have 1 Dash, I must spend $ 100.
For $ 100, I can buy 175 XRP.

Having 175 psychologically sounds better than having 1.