To expand on what John just said (which I believe is absolutely true):
Payware products are most likely price inelastic. That is, the quantity demanded of them changes very little following big changes in price.
This is due mainly to addiction I would think. For example, payware junkies like Ashar. Even if the price of payware was increased by 50% he would still buy nearly as many add-ons.
However, if the price of payware is halved the quantity demanded of Payware products would not double as one might expect. It might increase by a quarter, because the market is so small for payware products and the number of addicted payware junkies is limited. Many people strongly believe in only freeware.

Look at this Market diagram I drew in photoshop. Demand is inelastic. As you can see, the large change in price from P1 to P2 causes a rather small change in demand from D1 to D2.
Because the total revenue is depicted by this formula:
TR = Quantity demanded X Price per unit
The area under the coloured lines represent the total revenue payware companies earn.
So, as we can see at a higher price (the red line) the area under the line (total revenue) is much larger than for a low price (blue line).
Payware companies are earning for themselves as large a revenue as possible at high prices. We discussed recently how this is an efficient way of allocating payware products.
An important concept:
Demand at a given price measures people's willingness to buy a product at that price.
So from this we conclude: people who buy the payware at high prices value it more than people who do not, hence it is a fair and efficient method of distribution which ensures that people who value the product enough will have it and people who dont will not.
However, this is of course a big generalisation, as economics thrives on generalisations.
Rest assured then, that obviously there is a price at which demand is no longer inelastic and demand would plummet beyond that price. So rest assured, the price will not keep rising forever.
Thats my economics revision for today... ::)
