I'm not at all worried about what Monroe has said. Everyone wants as much money as possible, especially with their FIRST big contract. Further, the Pistons have been a joke Monroe's whole career. Why wouldn't he want better options?
The problem is that trades now generally return poor value. The latest example would be Tyreke Evans. Forget for a moment that Evans isn't that good, but look at what the Pelicans gave up: Greivis Vasquez (a pass-first PG who can't shoot or defend) and Robin Lopez (a player who was almost useless in New Orleans). Now, Evans IS a worse player than Monroe, but the biggest winner in the deal was Portland, who turned Lopez into a solid defender and finisher.
Trading Monroe now would be trading when his value is probably lowest. I'd much rather match any offer, then open up trade talks in December. Monroe is very nearly a 20-10 center. Does he have limited defensive value? Yeah. Does he have minimal range? Yeah. But you could say a lot of the same things about Al Jefferson. How many teams are kicking themselves over letting Charlotte scoop him up for less than the max? There are absolutely teams that could get a ton of value out of Monroe (Philly who could pair him with Noel, Milwaukee who could pair him with Sanders, LA/Orlando who have almost nothing to speak of in the frontcourt). Being rash is what got us into this situation (Joe constantly trying to reload instead of rebuild). Let's be patient for once, actually find the best deal available, and make it only when we know for sure we can't make something else work.