PSA Grading at National Sports Card Convention in Cleveland in August Question

[that T206 Guy]

So I was Curious about the PSA Booth at the National Convention since I have not been to a big show like that before.

Do they Grade the Cards at the Show?

Is the Machine there?

I ask because a long time ago I went to a Local Show here in Michigan and SGC was there.

So I gave them like 10 cards and Paid thinking they would be Slabbed at the Show.

They Told me they had to take the cards back with them.

I was like what is the point of doing this.

All that did was save me postage and having to go to the post office (It actually cost me more because I had to Drive Far to the Show).

I could have just mailed them myself.

I was really bummed out by that but that was like 20 Years Ago and this is a Big Show so Maybe they Slab the Cards at the Show?

Or is it like they used to do - Take my Cards and My Money and I still Have to Wait Forever for Them to be Mailed Back?