Fly Them Before They Are Gone - Update

MD 88 at Bush Airport (IAH)

I noticed a Delta Airplane at Bush Airport (IAH) in May that had the engines on the fuselage.   I looked and behold!  The distinctive skylights were on the front of the airplane.  Delta is flying MD 88 airplanes!
Now I find out Delta is flying MD-90 airplanes!  Huzzah!