I can't wait for people to realize that sealing video game consoles inside an acrylic case will yield leaked capacitors that completely destroy the value of what is inside their "investment". You end up with a fancifully graded cardboard box with a dead console inside. Might be nice to a historian in 100-1000 years to have it sealed up so they can reverse engineer the thing and build a replica but IMO if what you have is a cardboard box with a dead PS1 inside the hell is the point?
With cartridges and CDs I can see the point - to an extent. But with consoles it is beyond ridiculous.