Keith
The best camera is one that still works!
I guess you've never done a shoot mixing strobes, reflectors, ambient light and shadows. Without a light meter you'd be faffing and waffling about. With a meter you can easily set your ratios and with a couple of minor adjustments of the lighting using the meter - bam perfect exposures.
I agree, simple stuff one should develop the ability to read the light, but when on a shoot and things start getting complex a meter is an tool I wouldn't want to be without. I even use it for one light setups particularly when I want to nail the ratio between strobe and ambient natural light. It's faster, quicker, easier and far more accurate to use a meter.
Totally agree ... but for casual shooting that doesn't involve any form of artificial lighting I'm happy to meter by estimation. For anything complex I have a 308s that I rate very highly ... it's a great meter.