Assuming your are talking about the auction? The cars are definitely worth the price of admission to see. I’ve been attending their Chicago area auctions for years and even made the 3+ hour drive to Indy a couple times to see the auction there.
As far as Covid risk, many of the cars at the auctions are displayed in big top tents with a lot of ventilation, some even outside. I’m not sure how Kissimmee is laid out and if they have some indoor buildings where some of the cars are, but even if so, with a little caution you will very likely live to tell about it!