I tend to lean towards the conspiracy theories, but I think it would be ridiculous not to accept the possibility that Autodesk has focused on new features more than working out old annoying bugs because that's what a majority of the users want. Go to the AUGI forums and check out the "wishlist" categories of each product and you see everyone wanting a particular feature or function.
Do you really think that's a good basis?
From what I've seen, half of the wishes on the AUGI forum are already possible, it's just that the poster is so unfamiliar with Autodesk software that he/she doesn't realize it... And of course, I don't think I've ever posted a wish that Autodesk would fix bugs. I thought the desire to use a product that isn't full of bugs was a given, and didn't realize Autodesk needed it expressed in wishlists before they would think it was important. And I suppose I also just tend to think that the wish lists are for requests for new features, not requests for fixing existing features. I don't know why I thought this, I just did, and I would not be surprised if others made this assumption as well. When I find a feature that doesn't work, I report it to Autodesk through the MyFeedback page as a bug, and I will post about it on the regular newsgroups (especially if I discover a workaround), but I usually don't post it on the wishlist. And when the next version comes out and the bug isn't fixed, I start to rant about it...