Is this any different from the old Kreskin routine?

http://www.elmwoodmagic.com/?nd=full&key=4737&tagent=topb

If it isn't, how do they justify $25.00 for a mostly mathematical, minorly psychological effect I learned just by watching him do it once?

They justify it because they know there are newbies and wannabes who will buy it. Next question?

There is slightly more to this than just the psychological force.

Direct and powerful mentalism from Marc Oberon!
A folded prediction is shown written on a slip of paper which is placed in an empty envelope and left in full view. A spectator names a two-digit number, the prediction is removed and the number written matches the named number every time!


Nice 4 star review also. Think Marc has changed it up a bit from the original.

Ah okay, cause if you have that sort of mind, once you've seen the force once its pretty easy to reason out.

Ofcourse this is true with a lot of numerical/psychological forces.