They're called "Options" for a reason. They're "Optional."
I think a lot of it might depend on how often you play and how long your campaigns last. For the campaign I run, we've been playing for about 3 and a half years with pretty much the same group of newbies, so Core was fine for them.
For people who go through campaigns a characters a lot more quickly, having more options might be good so they don't get bored.
I took a few levels of hexblade in the new campaign in which I play just because it was different from the same old thing.
I think a lot of it might depend on how often you play and how long your campaigns last. For the campaign I run, we've been playing for about 3 and a half years with pretty much the same group of newbies, so Core was fine for them.
For people who go through campaigns a characters a lot more quickly, having more options might be good so they don't get bored.
I took a few levels of hexblade in the new campaign in which I play just because it was different from the same old thing.