Yes, I read them. It's part of my business to know and understand them. Don't you read things you sign? If you don't you're a fool. I never sign anything I don't read. . . I am not a fool.
Let's acknowledge that EULA's are just another form of "opt out" rather than an "opt in." Most people will not purchase a piece of software and then decline the install after reading the EULA, and then return the software to the place of purchase. In fact, some retailers may not accept the return if the shrink-wrap is removed, which is necessary to read the EULA in the first place.
With digital downloads, it may be a few days between downloading and installing, which may result in exceeding the few minutes of return policy.
-PJ