Title says it all
Looking for inexpensive 1/35 AFV display case(s)
Best prices I see on net are around $30.00
Any suggestions?
Thanks in advance!

There are these by Trumpeter:
https://www.google.ca/search?q=trumpeter+master+tools+display+case&tbm=isch&source=hp&sa=X&ved=2ahUKEwjq9tzSn7DiAhVnpVkKHR8_DaYQsAR6BAgJEAE&biw=2133&bih=1009#imgrc=_
And these from Pioneer Plastics:
https://www.pioneerplastics.com/
Pioneer Plastics are in the US and will give a discount on a carton of cases.

Not exactly what you are looking for, but I like these Detolf Shelves from Ikea for $60.

https://www.ikea.com/us/en/catalog/products/10119206/

I have three of those - a little rikkity, and the shelves are spaced really far apart with no easy way to add further shelves - but they're OK. A note about the Pioneer cases: most kit cases have an annoying molding nipple right on the top center of the clear cover; Pioneer's don't. The sprue gates are on a lower edge, and not noticeable.

I've seen a few mods online on adding a shelf between each existing shelf to double your display space, as well as a way to combine two into one wider case to fit longer subjects such as Tamiya's tank haulers.

My initial plan is to get six to form a row along one wall. If I mod them all to add additional shelves I estimate I can get about 175-200 of my 1/35 armor kits in that. I have space for another six that should see me through to my death due to old age.