LV makes many more styles in canvas so it is more popular. I have both and prefer Epi for more formal attire. I think of canvas as my everyday bag but get tired of the canvas print and find myself using Epi Speedy more and more.
Slightly OT, but has your Epi Speedy softened at all with use? I like how understated Epi is, and it takes colors beautifully, but sometimes I just can’t get over how stiff it is.