Lets face it guys! Its the 5th version in a series that will have a 6th, 7th and 8th version... You would be delusional to think this will go up in value... You can buy GT 4 on ebay for $5 dont think for a second it will increase!
Only games that are Rare and are first edition will be worth anything in the future. (Remember 'Rare' dosnt mean expensive to buy when new

! it means the opposite of popular )
I see games becoming like books from that POV.