It should be obvious to most to off the newer,if the older unit is up to the task....but.
It depends on a cpl other factors for me.IF and thats a biggin,for example the older pce has some rediculous amt of cash worth?Sometimes old hand tools & equip can get into 4 figures....and when you combine that with the fact that as "preserver's",we shouldn't be muckin up really nice examples of toolmaker's art.....Well,I'd consider selling,reinvesting money into tooling more suited or more profitable?
We have old historic equip here thats too nice to use.Oh we still use it,but its got to be babbied.