I know I'll never order from Sears again (other service companies carry parts on their trucks), but I hadn't thought of just making it illegal to provide bad service...
See, you're doing the right thing there by telling you friends. I've done the same on Facebook (Sears told me that me hand-washing dishes for a month while I waited for a $70 part was reasonable under their extended warranty that I foolishly purchased and that I was lucky because people who have refrigerators that fail in the summer and have to wait six weeks for service are much more unhappy).
And I mean FOOLISHLY because, for Pete's sake, I'm in the support & service business and I never thought to ask Sears what their SLA is!
So, yeah, I'm going to buy my next appliance from the local mom&pop shop and pay more, which means I'm pre-paying for customer service I'll need later (dishwashers are essentially disposable after their warranty service now - a control board can cost $375 if it's an old enough model).
What the OP wants is to make it illegal for a Mom & Pop store to ever exist, because only the big megalocorps like Sears could ever afford to stock huge quantities of parts (and even Sears has closed down its branch parts counters in this economy). So, to the OP - screw you for being a corporate water carrier and enemy of the small business owner - you are what's wrong with society. If you want a service *PAY FOR IT*. Asshole.