I looked at gassers early this spring and was really disappointed from a quality standpoint. Have an old decrepit Sunbeam with side by side burners. One thing I always liked about it was both the base and lid were cast aluminum so it held heat well. Cooking grates are 3/8" welded steel rod, and you could get them red hot for a good sear.
Now, I'll admit I didn't look at Weber's. But of those I did look at, I saw thin bases, flimsy painted sheet metal lids on the low to mid range and then lots of ill-fitting shiny stainless steel. Wife called them "patio bling"; to impress the neighbors and friends. About the only one I took a second look at were the Char-Grillers.
I'm still using the Sunbeam, and cruising CL for an older gasser that I can clean up and restore with new grates and burners.