Ron Andersen said:
I'm a big
Waterman pen fan! And it's got to be a Roller Ball. My only
fine pen is a Waterman
Expert Roller Ball in a red marble color.
Fine pens are certainly something (like watches) on which I could easily blow way, way, way too much money!
I too am a HUGE Waterman fan (IMO) they are the BEST on the market and only certain Parkers, Lamys and Crosses are in their league. I don't see much need in paying big bucks for a plastic pen, most Watermans are lacquer over Brass, which makes for a strong, heavy pen, they also have a lifetime warranty. Congrats on the Expert, it is probably the best pen series on the market at its price point, though I am also a big fan of the Lamy 2000.
My fav. Ballpoint is my Waterman Expert Red with a medium black refill, it's beautiful and writes very fluidly. I also use a black Waterman Phileas Rollerball, and plan to get an Expert Fountain in Prussian Green pretty soon. I don't have any of the L'Etalon series yet (my favorite Waterman, very classy/expensive) but I plan to get some, and at least one Edson fountain one day

(really expensive)
I am surprised not much mention of the Sanford/Papermate PhD or Pilot Dr. Grip, while I realize these are inexpensive both are GREAT writing pens and very comfortable to use. Also my FAVORITE inexpensive ballpoint, the Sheaffer Award. The old Parker Jotter is also good, but I don't use them, I have big hands and get cramps in them very easy when writing with small barreled pens, which is why I always prefer pens which are fairly fat, like Waterman Expert, Lamy 2000, Sheaffer Award, and if I could afford one Parker Duofold
