It was only quite recently that I got a cordless battery powered combi drill, after years of using a corded one. I was one of those who continually "persuaded" myself that a cordless one was not unnecessary.
But now I wish I had changed years ago. Modern batteries have a lot of long lasting power, and if you have a spare battery too, then waiting for batteries to charge never happens.
No need to carry extension leads about on jobs far from a socket, no need to constantly be afraid of tripping over a flex, and the worse one for me is when you're precariously balanced on a ladder whilst doing a job and the flex may wrap around your legs/feet.
Cordless all the way for me now.