Greetings,
Alex,i totaly agrre with you,it is worth to buy a new computer for this game(if all other options are worn out).
I have an old computer,now on the outside.The inside is all new stuff,new motherboard,power suply(400 watts)new graphic-card.
Before the game2006 came out,my old system was strong enough.Afther the release of the game,soon i founded out that this was no longer true.Now with my new stuff,it works.I mean everything works better,not only the game.
Would i change again(if needed)YES,YES,YES.
Regards
Marc