The first iPad we ever bought, and iPad 2 for my wife, we splurged for the cell capability thinking she’d use it / benefit from it. Never enabled it.
Haven’t bought a cell iPad since.
I’ve got a hand-me-down apple watch with cellular. I’ve got that enabled. It was great when I was jogging...
Don’t want to drain iPhone battery supporting tethering.
I mean, this isn’t for me. I have no need for cell plan iPad. But if you need it, or it makes your life easier, or it’s a business expense, then it’s only $120-ish a year.