Again, if you want to buy a fully loaded Amiga, you do it for collecting, nostolgia, and not for power in 2005. You are much better off buying a PC or Mac than this if you want to do modern things with it. The reason it costs more is obvious; it is rare and there are not many for sale today. NOT because it is faster or more powerful than other platforms. The casual ebay browser that runs across this item on ebay will laugh and think what kind of idiot would bid on this.
And as far as why a A4000 costs more than other Amigas is, it was the flagship, latest model from Commodore. It blew the doors off the Amiga 1000 or 500. (512K vs 18MB, 16bit vs 32bit, 68000 vs 68040, OCS/ECS vs AGA.) Some may disagree, but the A4000 was simply the best model from an Amigan's point of view back in the day and more or less today. (The A3000 was also great, and IMHO the A3000+ would of been the ultimate Amiga!)
