I think that anyone selling anything should charge whatever the market will support (balancing that you want return customers and lower pricing might lead to volume).  The market may be different in different locations and thus the price.

Selling at a personal site gives a seller 100% of the profits and selling here does not.  Wincustomize takes a percentage for the "marketing and distrubution".  I think they deserve that.  So an artist might charge more here to recoup the % lost or they may charge more here because the likelyhood of an impulse buyer is higher and might pay more.

Is it a practice I would do?  Probably not not.  Especially if someone buys at a higher price-point in one place and finds it lower at another.

One of the nice things about the Master program is that you are not tied to Wincustomize to sell your stuff.  If you make that rank, you've done your time already.  Selling content here is a reward for contributions and everyone (skinner, Wincustomize, and the users) can be a winner.  If a skinner was forced to only sell their work here  .  .  . well . . I'm not sure that there would be so many winners. 

An interesting question would be "what if a journeyman had a personal site where they sold content and they got promoted to Master?"  Would they have to close their other site?

While it could be seen as bad form offering discounted Master themes sold at WC on other sites.( kind of competing with WC ).

It is the Masters Theme set and should be able to do with as they please. What If they just stopped posting them here all together and only offered them for sale at their own site? As far as I know the masters are not "obligated" to only post themes here for sale.

TSF did it for years. Built theme sets sold to all kinds of Customers. I see this as no different.

IMO I would keep my Master skins here, if I ever achieved that status. But thats only because WC is my home site and would want to support it as much as possible. But to try to restrict others, would be infringing on the authors right to distribute as they wish.

I do warn that if it becomes mainstream to Post them on other sites, policing them may become more difficult by the community. If we spot one were unsure about on another site, it will take time to contact the Master and see if it really was him posting it there.

Food to think about.

Should be up to the skinner to set their prices on their own site.. as I believe Zoomba cleared up, however I personally have always kept the prices equal.. seems to me if John Q customer see's the same theme for less elsewhere he might get a bit bothered.

To each their own I suppose. I've always lived by 'treat people as you would expect to be treated yourself'. Much easier to sort out decisions that way... good for business too.

If skinners start to do variable pricing, it may actually hurt them in the long run too.  Lets say a user comes to Wincustomize, buys Master Skin X, finds out they paid $4 more than they could have at another site, they may never buy skins from that skinner again because they feel ripped off.

It's all about balancing out what the market will bear.  It happens in just about every market too.

See, there was a simple answer.   

I thought it an interesting discussion in any case.