i think its great that theres all of this discussion over something such as business models -- in this age of technology i feel its often something overlooked -

i think its great that theres all of this discussion over something such as business models -- in this age of technology i feel its often something overlooked -- but in my opinion, they are both valid, it just depends on what you're going for. if dhh is happy working 4 days a week on 37signals and earning the money that he is, and he wouldnt rather be doing something else, than great for him! if his interest were exhausted, and he were still doing that, then i would say why not sell? for me personally i could not be happier than working on my current project, because it is what i am most passionate about. however, with that being said, for the right price it would be crazy not to sell. not only could you continue to work on it afterward, but if something else came along more interesting you would have the opportunity to pursue it. i just dont think this is as cut and dry as dhh wants to make it seem, and i really agree with the clarifications that paul made in his first comment.