Thanks for all the responses here. I picked up a Ducane Stainless today. I think that is like the top of the line Ducane. (Affinity, then Meridian, then Stainless if I'm reading their website right).
$150 included the tank which is about 3/4 full and less than 3 years old. :)
It's all stainless except for the knobs. Appears to be a mix of 304 and 430 stainless. Bought it from a 72 year old retired school principal. Oh it also included the cover. This is not a generic light weight cover. It's really heavy and has the Ducane brand on it. It was covered, and on a covered patio. Also included the rotisserie. Has a side burner and the IR rotisserie burner at the back. Everything lights. Appears to have been very well cared for but not used very much. Burner tubes have no corrosion at all and when it lights, the flames are all equal size and.... well it lights like it's new. The "flavor bars" or whatever Ducane calls them are also without corrosion. I cleaned them off with a plastic scraper. They had a little food drippings on them.
I was kind of amazed at how heavy the stainless cooking grids are. Thick stainless bar. I think it cleaned up pretty good. Didn't need much. Mostly cleaned it with Simple Green and then wiped it down with WD-40. Couple places I used the plastic scraper to get some old grease off, but really minimal.
So... I've been a charcoal (lump) guy for about 7 years. I have a Weber Performer. I wanted to try a gas grill in the mix to see how much I'd use it. I think for $150 it'd be hard to go wrong. If I don't use it or don't like it, I haven't invested 7 or 8 hundred in a Weber Genesis to find out.
I did check the thermometer on the hood against my Maverick. When the hood was reading about 380, the Maverick was showing 595 so the hood therm is a little off :O
It also has a really big gap at the back of the hood between the hood and body. Like inch and a half to 2 inches big and the full width of the hood. So unless I can find an elegant way to close that gap a LOT, it might not be great for the long slow cooks hehehe.... we'll see...