I get mine checked every time they get new tyres, my place doesn’t charge for the checking (and no, they don’t always find some work to do either 😉 )
It’s funny, I knew fine well my Focus needed doing, and it made a big difference.- it was vibrating and pulling to the left (*) But I didn’t realise there was anything wrong with the mondeo til I got it done, and all of a sudden it just felt… nicer, basically. Slightly smoother, less management while driving, just a tiny bit better, but all the time. Well worth it even with the less dramatic change.
(* having said that, when you find the perfectly curved road so that your car pulls in the same direction at the same speed as the curve, it is like zen. )
PPS cambers will pull your car to the left anyway, drive it on the flat to see.