Because it's a European camera, the Eclair ACL usually has a 25fps frame rate option on the motor (in fact I've never seen one without that option). Plus the shutter angle for that camera is around 175 (close enough to 180 to make no difference). Note, some super 16 conversions change it down to 144 degrees.
They're not as cheap as the K3's etc, but still way cheaper than an Arri or Aaaton. Also, depends what kind of package you buy really. I picked mine up for 500GBP and sold several spare mags that came with it for 400GBP, making the whole thing cheaper than a K-3 :)