If you aren't really far from
Tractor Supply, go by and see if they still have it, and if it is digital? I thought (when I was in the store) that they had finally gone digital, but then couldn't find anything to back that up on their website. But again, their stuff between web and store doesn't always align well.
If it is a wafer switch still, don't waste your money, you will just get frustrated and quit hatching.
You can get a new Genesis 1588 on
Amazon for less than $200, including shipping, and they ARE digital. Your hatch rate will be better if you use an automatic turner, which not only benefits the eggs but also increases air circulation around them, which is important at altitude. You can buy one new, or perhaps you can find a used one?
I also think the
Brinsea disinfectant (about $20 for a concentrated small bottle on
Amazon) is worth every penny. Unlike bleach and peroxide, it seems to have a residual effect. I use it half-strength (half the label diluted strength) on the eggs themselves before setting them, and at the label dilution rate on everything else. I keep some in a spray bottle and use it before touching the eggs in the incubator too, and I wipe the hatching rails even while incubating. Greatly reduced my rate of quitters.