To keep demand high across
generations, Disney Studios carefully
restrict the supply of some home
release classics. They are locked
away in the 'vault' for 8-10 years
before being released for a short
unspecified time.
Buy them in this window at normal
retail price and you can turn a nice
profit when they go off sale for
another decade or so.
For example, in 2011 you could buy
Beauty and the Beast on Blu-ray 3D
for just £24.99. In just a couple of
years it was on Amazon for a
staggering £74.99!

Importantly, not all Disney releases
are subject to the vault and only the
true classics will maintain such
demand.
Right now there are just 2 titles out
of the vault which I would
recommend snapping up. They are
Bambi Diamond Edition Blu-ray and
The Lion King Diamond Edition Blu-
ray .