I had the Ridgid saw with the cast iron top and I loved it. Mine came with the mobile base that locked in place or able to drop the wheels to move it. I ended up selling it and regretted it. I never replaced it, as I used it very little. The fence on that saw was dead accurate right out of the box. No deviation in measurement from the front to back (could have been a fluke). Motor was a soft start which was a plus. It takes 2 people to assemble. Usually runs $600.
I am a big fan of Ridgid tools. The lifetime warranty is an added bonus. I never had a problem with any of my power tools made by them, except for the batteries in my 18V drill finally wouldn't hold a charge after about 11 years (bought in 2004 and they were replaced about 2 years ago). They replaced them with no questions asked. I took the batteries to Home Depot and filled out paperwork. They kept the batteries and I had the replacements in less than a week.
RBeach
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What if there were no hypothetical questions? - George Carlin