I started in the mid 1980's and bought and still own a Garret ADS III. I took some time off and a few years ago decided to get back to it. I also own a Fisher F2, a Delta 4000, and this year a Simplex+.
The dealer, sold both the Garret and the Whites. He talked me into the ADS because it was a VLF and didn't require the constant fast swinging.. LOL. I did put some miles on it though.