0irishwhistle 10 years ago I admit I haven't exactly been trying to sell anything, but for what it's worth I doubt most people wanting to buy a painting ask first if it's oil or not. Just the average person passing by a seller who has a stand up at some craft fair, anyway, is going to be interested if they like what they see and can afford the painting. I do know this... oil and acrylic or drastically different, and do not always lend themselves well to the same techniques. I work in acrylic and I don't see why it should matter. I have to believe that people expect certain types of paints to be used for certain techniques. Acrylic can be adapted to other paint styles, but there are styles that only work with acrylic, or work best with it. I use an air-brush thinner to create what is almost a wash, usually using filberts and dagger shaders, and layer on my color, and there's no other medium I know that would allow me to do that without removing paint each time I add.