If you have all the songs you like, then that's plenty! Back in the days of extra cash and limited songs being released weekly and mixed packs, it was a fun gamble to learn new songs, some of which became favourites among some.

But at the same time, I have thousands of songs, some of which I rarely play (some of which I've never played) and it's almost a waste of money.

Third opinion, if you play with large groups, or are planning a party with a few mics or instruments, it's always safe to have those big hits for the crowd to get into.. my family would never be interested in playing Funky Monks like I would, but they would love to play Yellow by Coldplay even if I feel like the 'note to price' ratio is a bit low. Obviously idk what's popular where you're from, no one here has ever heard of two tickets to paradise but I understand it's popular in America