XMR in high demand? Probably not. The price is long-term stable (or falling). The fault will be elsewhere.
It's weird. You are probably doing something wrong when you are obviously still empty and driving your customers elsewhere.
It's precisely because XMR is in high demand on eXch that our reserves are so often empty, in particular because there are many backorders which are often draining our liquidity. XMR is in high demand on eXch because we provide a high-quality service respecting your privacy, we aren't doing anything wrong.
(By the way, I don't think that comparing the demand for a coin on eXch with its market price is the right way to think, especially for XMR)