reground or new cam?

[Daniel Neuman <dneuman@stars.sfsu.edu>]

Hello All,
        So it appears that a new cam is about twice what it would cost me to
have my old one reground.  What are the pros-cons to reginding an old camshaft?
They have to take off metal don't they?? WOnt that change the profile of the
old  cam??  I don't understand how it can still have the same lift if its 
been reground?
                Daniel 69 2000