I basically agree with what you are saying, but I think your pricing is off. Good quality synthetic oil is $3.00 per quart (Costco Kirkland synthetic or equivalent) x 6 = $18.00. I personally buy a "fleetpack" of 12 ACDelco oil filters for about $3.25 each (both my daily drivers use the same filter), but you can buy a good quality filter for about $5.00 each (or a Fram Extra Guard filter for $3.98 from Amazon with free prime delivery), so about $21 - 23.00 for an oil change at home. Fram Extra Guard PH12060, 10K Mile Change Interval Spin-On Oil Filter 153 Automotive $3.98$3.98 FREE Delivery Fri, Jun 18 Retail oil pricing varies around the country - so $60.00 may be accurate where you live. I can get an oil change at my local GM dealer for under $50.00 using ACDelco oil and filter. I choose to do my oil changes myself (I'm retired - so I have the time). Dealing with the used oil is not a problem. Just save some (washer fluid for instance) gallon jugs to put the waste oil in and drop it off at any place that does oil changes (they are required by law to accept it), or a local NAPA store (they advertise on their website that they take waste oil).