I've had many 3P's in the past and in many different colors. In the '90's, I EDC'd one for over five years. I don't know why they're so collectible now as I sold my last two red ones here on CPF about two year agos for $30.00 each. Hey but that's neat that they are so collectible now as I've seen them sell here for up to $90.00 for mint examples!
SF made thousands of them and they came in many different colors and were a big hit, (as ABTOMAT alluded to), as many companies had their logos printed on them with custom colors.
The output of the R30 LA used in the 3P was about the same as the E1's MN01 LA which isn't bad at all. SF simply replaced them with the E1 as the E1 is much more compact and as bright.