I'd say the pneumatic grease gun will definitely be worth buying with that much greasing to do; sure saves on the energy required to do the job.
Incidentally, when I bought the grease gun, I also wanted the needle adapter and the Tractor Supply Co. store was temporarily out of them, so I went to two tool & equipment stores in town. Each of them had the adapter, but for the big nozzle instead of the small one, and each priced it at over $30 (more than the gun cost). So I waited and visited a Tractor Supply store in another town a few days later and bought the needle adapter, with both collars for big and small nozzles for $5.06, including 8.25% sales tax./w3tcompact/icons/laugh.gif
Bird<P ID="edit"><FONT SIZE=-1>Edited by Bird on 08/19/01 10:09 AM (server time).</FONT></P>