For local (Surrey hills) riding, if I could have only one bike and it could have either a dropper or suspension, I’d choose the dropper.
Like everyone else, I rode without one for years and all that time thought they were a silly waste of money.
Of course you don’t need a dropper to enjoy your rides but, for me, it adds fun. It lets you move around on the bike much more freely, improves your riding and increases your chances of attaining that mythical, mystical state of ‘flow’.
Oooooooooooooooooooooooommmmm