Bushnell Boy is correct in that the Elites, both 3200 and 4200, are allegedly comprised of titanium (Bushnell says 30%), which is stronger than aluminum. However, I own several other Elites (before they started using titanium) and these scopes were mounted on heavy recoiling rifles....I never had a problem. I think that Bushnell's ads on using titanium is really more of just advertising than true need. I say this, in part, because I have numerous other scopes, like Leupold Vari-X IIIs, Nikon Monarchs, Nikon Pre-Monarchs, etc., etc., etc., and I have never had any problems with them, so I really doubt the need to have 30% titanium, or more, in rifles scopes. And believe me, I have had some scopes go through harder hunting conditions than you can imagine, and they still held up perfect - again, with no titanium.
Personally, I would take an Elite 3200 over a VX-II any day, but not because it supposedly has titanium in it.
Zachary