The one thing that has become a bit harder to find are lab and assembly workbenches. That stuff used to similarly cheap 20 years ago.
Another fun one is the usually poorly named "electronics recycler" - the kind of stuff rolling through these can be astounding, and they usually have people earning minimum or close to minimum wage dealing with it all - which yields strange pricing (some great deals, some preposterous) and a lot of stuff just getting dismantled/crushed/shipped overseas.