I agree in general with your point -- actually add attractions, don't just replace existing things -- but I think you are overblowing this. If the Speedway were removed, the footprint is relatively massive. They could easily build a large E-ticker for Fantasyland (in between the Tea cups and the circus are) and an E-ticket for Tomorrowland on that plot, putting the show buildings back to back. That's a big reason many of us would like to see the Speedway gone -- it takes up so much space for a smelly, boring ride that can be replicated at tons of go kart tracks anywhere in the country.