Sugar Glider Central

I have been wanting to add a sugar to my family.
I have researched the enclosure, diets and bonding of gliders.
So my next question would be what I need to know and what questions would I ask a breeder? I have seen prices from 100-3000 why?
Is it better to have 2 or is 1 fine alone?

Ask a breeder about the sugar gliders blood lineage and how long they have been breeding. also ask what diet they were raised on and how much human handling they have been exposed to ( daily, every other day, etc) Prices range because of availability, age, and color variation. the most common and cheapest one it the common grey. There is no difference between the personality of the different color variations. It is better to have two or more beause sugar gliders are very very social although having just one may be fine as long as you spend lots and lots of time with them.