However there is also the size and manageability to consider. I don't regret mine. I honestly don't think there's enough of a difference between mirror makers to worry about it. There are some who are at least as much interested in optical perfection as actual viewing. Basically, as much as you can afford.
Obsession sells a nice fitting one for a good price.
However, if you live where dew is a problem, you might want to explore making a shroud out of a fabric that won't collect water and drip on the primary. Note that there is some controversy on this opinion and decide for yourself. Upgrade to the NGF-DX1 focuser. I just replaced my focuser from the older version of the DX2. The ultra-fine focusing knob on the DX1 will let you focus stars to pin points.