It's fine, Moontoon, I understand your concerns perfectly considering nonsense like the 3DS.
I think with the PS4 you're pretty much good to go. The only thing you might find lacking in the future would be disk space, but you can delete install files (which are much smaller than I thought they would be) and installation takes single-digit minutes and the thing supports easy hard drive upgrades to boot (seriously, look up a tutorial, I could even do it if I cared enough, and I hate messing with hardware.)
I would only hesitate if you cared about possibly getting a limited edition console, like if the Dragon Quest Heroes metal slime console were to come out here.
Just remember that you now require Playstation Plus for online multiplayer, if you're hoping to do some of that.
Dr Pepper. It's an intellectual drink, for the chosen ones.