The big box Amigas are expandable with the A4000 the last designed by some great engineers. I moved from a towerized A2000 to an A4000T; for these were "work" computers used for word processing, DTP production of pamphlets and image processing. I had only about 8 - 10 games. I bought a backup A4000T around 10 years ago and kept it boxed until this year when I expanded it and then put it back in the box.