I purchased a set from Costco a couple of months ago when they had their $60 off sale on Michelins. I had them put on our '97 Mustang. So far, no complaints. I got them for $385 mounted and balanced, filled with nitrogen, and hand torqued. With that includes lifetime rotation and balancing.
Great tire. I have a set on my 2001 Tundra 4WD. Quiet and good in the rain. They seem to be holding up well after 30K miles here in Baltimore. The only difference to the LTX's sold at independent dealers seem to be the siping pattern - straight sipes with the X- LT's from Sam's, curvey on the LTX's. I could not say which is better.