Maybe. I recently needed a 2x5' piece of 3/4" plywood for a kitchen sink countertop.
I could have putzed around building supports for my admittedly tiny table saw, or I could have spent some moderately serious bucks for a used, substantial, table saw.
Instead I opted for the "Free two cuts" policy at Home Depot. I got my 2x5' counter top and some nice sized scraps for the cost of the plywood sheet alone.
So, one's choice of a table saw might depend on a) How often a project involving a 4x8 sheet comes up and b) Whether one has alternatives available.
And, speaking of Home Depot's board cutting policy, does anyone own one of those saws HD uses? The kind where the circular saw blade moves up and down on a stationary, vertical piece of wood? I'd think that machine would take up considerable less space than a table saw ('course you'd lose wall space...).