You can get the "monster" pins with bearings and handles, being as large as 18" and wieghing in at close to 5 lbs. These are designed for commerical kitchens and for large amounts of dough.
I see a common problem with many students and new-comers when it comes to rolling out dough--they work too hard!
Say you have a hunk of pie dough, maybe 4- 5 " thick and you want to roll it out. The first question I ask is why is the dough so thick? When you make the dough fresh, it is very soft and mallable--this is where you press it into a thin, flat package or discs, wrap up, refrigerate, and then roll out. A lot of the "grunt work"--reducing the thickness from 4" to 1" has been taken away. You can also slice off 1" thick slices off the dough and start to roll these out instead of whaling on the dough to flatten it out.
In the end, whatever works for you, works. I find the tapered pin works like a Ferrari, and the bearing handled pin a Mack Truck.