On one hand, the Nuggets were just about the most irrelevant franchise in the league before he hopped on board. They went from nothings to the playoffs his rookie season (and on a side note I still say those power blue and gold jerseys were the 2nd best uniforms the Nuggets have ever worn). They were a really fun team, though part of me felt they made some pretty dumb mistakes building around him.
On the other hand, he demanded a trade to ONE franchise and held the Nuggets over the fire until they did so...the amazing thing is, you could argue the Nuggets ended up winning that trade, even though they themselves came out in the presser afterwards and felt it was way lopsided against them. His career proceeded to flame out in spectacular fashion, and frankly I didn't have any sympathy.
So, yeah, I think he deserves to be honored, at some point, but no way in HELL do I think he deserves to have his number retired. The guy wearing his number right now is already a better player and will likely accomplish way more than he ever hoped to.