Same. Much like how Third Strike was the pinnacle of Street Fighter, Melee was the pinnacle of Smash. I'd love to see Melee get the same love that Capcom gave to Third Strike, but I sadly doubt it'll ever happen.
But much like how Street Fighter V came close to Third Strike in greatness, Smash 4 came close to Melee.
The stage unlocks in Melee were pretty painful. I still don't have Final Destination due to the absurd requirements.
Then again, so are the Custom Moves in Smash 4. At least you can amiibo grind the fuck out of them >_<
Smash 4 does have a lot of SP grinding though. Classic 50+ times, All-Star 50+ times, moves, stages, characters. Ugh.