The amiga to me is..
Useability and reliability... The interface is simple and easily learnable even for those with no computer experience (My mother can use it!) and to load a game it's as simple as putting the disk in and waiting.
Amiga hardware just works. Plug it in and off it goes. (Usually)
It's something that's been lost in the computing industry in recent years... The fact that people want to get things done as quickly as possible and with as little nonsense... These days it's more about what looks best and what rubbish they can put in with the OS... We need to see more of what the amiga once was, an fast, efficient machine made with the users in mind.