The problem is that you're assuming MSC is more liquid than it is. If you want to sell your MSC, you need to find a buyer, which isn't always easy, and even if you do find a buyer, he may not want as many Mastercoins as you are selling, in which case you may have to lower your ask price.

Reversing your remark would be better: If a dev wants to increase his exposure to mastercoin he can sell his fiat for MSC. This is surely much easier than selling MSC for fiat.

I don't know how many times it needs to be proven that we're going "all in". If the goal is to attract good developers, irrespective of whether *they* are "all in" or not, they should be paid in fiat, or at least BTC.