Mallus said:
Could you have done that as easily 100 years ago? How about 400? 1000? While few people's games strive for the kind of historical simulation someone like fusangite advocates, I think equally few run games that are pure 21st Western capitalist technocracies in Medieval drag...
But any civil society developed enough to have that kind of market economy is also going to have laws restricting the sale of goods that represent a massive threat to its stability. When you're talking magic the correct analogy is the arms trade. Often in WMD's. Try to buy a nuke, or surplus smallox cultures... while it may be remotely possible, such an endeavor requires more than a pile of cash...
And if you want to continue the art anology... there's a tremendous amount of art that isn'
t for sale. The instituations that hold it don't put it on the market...
Was it easy 100 or 1000 years ago? Depends. According to a reference in the Cartoon History of the Universe by Larry Gonick (and he has a substantial bibilography), there are records of Romans buying up Greek art with insurance policies that included replacement with art of similar value of the original is lost in transit. So, yes. It could be that easy.
But there are other issues at work. The church's most sacred relic wouldn't be for sale (note: that most sacred REAL relic and not pieces of the 'true' cross that we hear about in history) nor would some other things suppressed or monitored by the law under most circumstances other than the black market. And the trade in magic might decline from time to time based on the status of the economy, though it still might be possible to swing a purchase through some medium other than money.
That, however, does not deny that there might be a market for magic items just about anywhere. Most magic items don't come anywhere near the important relic level. A simple +1 sword? Not that hard to make, not all that pricey, not that significant in effect and probably not all that noticeable in use either, not hard to imagine these being relatively easy to find. Potions and scrolls really are pretty cheap to make and take relatively insignificant amounts of XPs.
The feats and resources for making many items aren't all that hard to come by either. So it's quite conceivable that general economic forces we are familiar with would create a cottage industry in making minor magic items... for cash as long as the cash economy is reasonably strong, for barter or other trade goods if not.
But even if we're looking at just a barter economy or even one based on trade in kind, we are still clearly indicating that there is a market for magic items and that characters can, in fact, buy them. Not being able to buy them at the drop of a had with a pile of cash doesn't mean we don't have a market in operation.
Nor does having significant historical works of art squirrelled away in museums really much of a counter argument. Art in general is still quite up for sale even if certain collectibles are being hoarded away. Maybe particular magic items by particular makers would fall into that intrinsically valuable category that it wouldn't be out on the market without the owner being in desperate financial straits. But other lesser works, reproduceable works, by other creators? Sure.