Just for giggles, I priced out a RT trip in June with 2 A and 2 C
Both were from the 128 Norwood station to Kissimmee. Both had a train change, the cheapest was $378, train change in DC and was about 22 hours, the other was $648 with a train change at Penn Station in NYC and was about 19 hours. Now if you want an actual place to sleep, you may want a room, a roomette is an additional $325 or a bedroom for $739 for the cheap train or $271/$864 for the expensive train.
I had a friend take the train from Norwood to DeLand last summer to visit us and she thought it was great.