Paid a little more than that for a B-17 ride, but I got 20 minutes and got to visit every station except the tail gun. In flight.

My favorite was the radio operator's compartment- the hatch was off, so I could stick my head out into the 150-kt slipstream. ;D
And look back at the tail of a B-17 in flight. :o
Definitely fun, and worth it if you love these planes and respect their history.
Not that I'm trying to talk you into anything... it's
your money...

Have a look at this while you mull it over; I'm sure there are also plenty of similar videos of B25s out there.
http://www.youtube.com/watch?v=zbQowHtx_mM