the problem with clamp ons is that not all of them fit onto the countertop. The opening in the griner is smaller than the thicknes of the countertop. Make sure to chek no matter wich one you decid to buy. BTW, I think they are all the same. The only thing that really matters is quality of the knives. Bbut even they can be re-sharpened if need to be.
I got the Cabela ProSeries Grinder, on sale for $179, with free shipping. I've been very pleased with it.
How much grinding do you do. My mother wants a new grinder, she is not happy with one she has, though I have the same one and I love it. I am wondering if she simply using it a lot more. Need to figure it out.