What's the value of?...

[Arup]

Hi everyone

Just joined as I also enjoy collecting video games

Could someone please offer their advice on whether I should hold on to the following for value/investment purposes, or whether it will not be worth it?

I have a sealed Xbox 360 Halo 4 Limited Edition Console (NTSC)

I also have 4 sealed "Last of Us Survival Edition".

I know that neither item is available from the manufacturer, but I wondered what people thought about how long it would take for them to be valuable?

Thanks

Arup