Ah ok, by mostly luck I went with an airless sprayer for the one unfinished ceiling I did a few years ago. I looked at the ratings for usage and it was clear I needed to buy an entry level pro sprayer. The comparison is simple, the $300 Graco X5 is rated at 125 gallons per year. The (at the time $900) Graco 395 is rated at 50 gallons per week. The 395 should last me a lifetime as long as I keep it clean and oiled.