Thanks, omak!
I've been doing them in groups of five, just like you suggest. I guess for me, I don't like them because they're boring. I enjoy piecing and patchwork because I have to focus all my attention on what I'm doing. The time just flies by, and I don't mind it a bit. Whereas with these strip blocks, they're so repetitive and mindless that they seem to take forever, even though a group of five takes less than an hour and half. If I want something mindless, I'll pick up my crocheting! But with quilting, I like to be constantly engaged.
Don't get me wrong, they sure look nice! And they're a great addition to the quilt. They're just not for me, I guess.