At Lucky Tire & Auto, Leif changed my oil changed at 228,855.  I think it cost me exactly $40, but unlike GreaseMonkey they did not try to upsell me on other services that were unnecessary.  In fact, they topped off the fluids and checked my transmission fluid and topped that off as well as checked the air filter and changed the oil filter.  $40 is the average price you pay out here in Denver.  I remember when Richard used to change my oil for $25 but he skimped on almost everything and before I left he was charging me $30.  At least I do get the confidence from Lucky Tire & Auto that they're doing a comprehensive job for one price.  That's worth peace of mind.