It really depends on the location, age, color, hets, teemprement, lineage, breeder, rarity and if it's sold with breeding rights or as pet only.
I think the best way to get a basic range would be to look at thepetglider.com, that's pretty much the biggest decent breeder out there and you can see how much her gliders go for. They have all the categories for the different colors on there too.
I think the biggest price range is mosaics... You can get a pet only minimally marked mosaic for $400... And then there are the ritzy WOW pieds, cremino mosaics etc that are easily $2500-$3000 and up, depending all those variables I mentioned above.
For instance: A pet only, male, non lineaged older glider from a mill breeder is going to be your low range.. Whereas a breeding quality handtame Joey girl with multiple hets from multiple strong piebald mosaic lines from a reputable breeder is going to cost more.
There's always a hot new color coming down the tubes too... When there's only a handful of those colored gliders out there they sell for xthousands easily in the beginning, until the market gets more saturated with them and the price is driven down.
Basically, ballpark numbers from what I've seen:
- black beauties $350 - 450
- wfb $300 - 500
- leu $400 - 1000
- cremino $500 - 900+
- mosaics $400 - 3000+
- platinum $600 - 900+
- albino $700+
- ruby leu $1000+