I just came back to the Amiga after having my A500 in the closet since '93! I ended up getting a "new" 1200 and have been loving every minute of it ever since. With the conveniences of networking, solid state storage and USB devices the Amiga is way better now than I left it back '93.
I tried the emulators and while they are very impressive it's still not the same feeling. I imagine it's the same for people who use old synthesizers. There's just something about using the real equipment that makes it a totally different experience. Plus it's fun fixing up and modding the real equipment.
I look at the Amiga the same as any other hobby. You have a certain amount of free time to spend and however you spend it is up to you. I'm very pleased that there's still a community here and as well as a thriving market place along with great hardware manufacturers like Indivision. That makes a world of difference.
So go grab yourself a new/used Amiga and start having fun with it ASAP!
