Lazy and/or ignorant as to the manner in which people are wanting to do business, which is mostly online and not in person. My time is important to me... I'm not wasting hours on end driving from dealer to dealer to spend hours at each place dithering over price.
On 10/11 I sent out 33 emails (yeah, I know, probably a bit much) and only 15 responded, out of those only 1 sent me what I asked for... I sent a clarification to 14 dealers; only two more replied with what I asked. Two basically refused to negotiate over email. Apparently there are enough people willing to walk into a dealer and pay way too much for a vehicle.
Today I'm going to the dealer who actually replied correctly the first time and offered a decent deal...hopefully I'll be going home with a new truck.