Buy a car without physically seeing it

Has anyone been to one of these car auctions? I'm shocked how much some of these classics sold for. a 1973 nova that looked perfect sold for $11k. a 66 dodge dart gt sold for 20k. They've got 3 barrcudas being auctioned, a 1965 that i posted a link to, a 1968 with a hemi and a 66 that looks like it might be original. What might a 68 with a hemi go for? The undercarriage is spectacular. 1968 Plymouth Barracuda Hemi