Finally found a "real paint store" that sells Benjamin Moore exterior
paint in 5-gallon pails.

Store employee asked what I was planning to paint over -- oil or latex.
I replied that I didn't know because it was already on the house when we
bought it, and (unlike with many of the interior paints) the previous
owner hadn't left any of the exterior paint.

Store employee asked if the existing paint was cracking. I said that it
was, and she said, "Then it must be oil based, because latex paints
don't crack."

Is that true? So if I prep properly and paint with a 25-year warranty
latex, the only reason to repaint within that time would be that we get
tired of the color?

Perce