Lapidary blades, slab saw blades & tile blades. Whats the difference? Let’s look at a few together

I just happen to have a whole bunch of brand new blades so I decided to make this video so you can see the difference between some of these really expensive blades compared to some really inexpensive blades 

[@randomgrinn]

Interesting video, but I was hoping I would learn the difference between the three types of blades, and I didn't. I wish you would more clearly say what is different between them.