I have one too, and I think it's great, but I'm not a hobbyist. In a big commercial cabinet shop, it comes in very handy, but even there, I don't use it every day or even every week.
In my situation, it has paid for itself several times over. I would never consider selling it, because the need will always come back up.
Of the ones who do sell them, I would be that they did it because of the cost. It is a fantastic tool, but if you don't have enough need, it will get you most of your money back. I holds that value because it is worth it. I have never heard anyone say anything bad about them, other than the cost, which is a personal perception of value.