You also seem the confuse the fact that not of all Dash's coins are available on market, more than 50% of all Dash/DRKs are stuck in masternodes.
They are not 'stuck' there any more than my Euros are 'stuck' in my bank account earning interest (or 'paying interest' if your in the wrong country).
They can be moved to market just as easily as any other coin can. The fact that some parts of the Dash money supply can earn interest through supporting the network is by design.
So according to that logic, all of Bitcoin's 3rd party wallets(Of which some are really beautiful, Multibit, Electrum, Armory etc), also show that having a wallet isn't enough of a "priority"?. The success of a system isn't just what the developers do, especially in an open-source environment, it's what the community does as well.
Well, true, but it would be good if the developers did 'something'.
I'm not even sure if there are any Monero developers and if there are I sure have no clue what they do (other than scurrying all over bitcointalk and reddit for hours a day bashing Dash and defaming it's def who's probably one of the most creative and productive people in this industry).