Apparently, according to the “rules” in 4th edition D&D, the player characters are idiots when it comes to commerce. Ok this is going to be a nit pick for the beginning of my look at the new books. I have no intention of doing a full review, that would take really getting down and playing and time is limited. This nit is however symbolic of things strewn about my skimming of the books.

From a sidebar on the section on rituals.

You can sell ritual books or ritual scrolls for half the market
price of the rituals they contain, assuming that the DM
agrees that demand for a particular ritual exists. Although
you can try to sell copies of a ritual you know, doing so
offers no financial gain, and there is limited demand for
ritual books or scrolls. You pay the full cost to create a
scroll and can typically sell it for only half value. In addition,
the number of people in the world who can afford to
perform an expensive ritual and who can succeed on the
necessary skill checks is small, and many of the NPCs who
are skilled enough and wealthy enough to be potential
customers already have collections of ritual books available
to them.

So now from the Wikipedia article on Market Value

Market Value is the estimated amount for which a property should exchange on the date of valuation between a willing buyer and a willing seller in an arms-length transaction after proper marketing wherein the parties had each acted knowledgably, prudently, and without compulsion.

First why write a “rule” like this. They say several places in the PHB how much things will sell for. I know previous editions have set pricing structures for things. But the Saying the Market Value for something is say 50 but since you are a PC you can only sell it for 25 just seems silly.

Honestly any DM worth his salt will ignore this and do whatever they want. The writers should know this and take it into account , writing to the level of  the players.  I feel like this is what is coloring some of the dislike experienced  RPG  are expressing.

Sorry, just something that bugged me and I had to dump it somewhere.