I'm not very familiar with Neo Geo hardware. In fact, other than an MVS at every arcade ever, I've never played any Neo Geo products (i.e. all the home consoles). I was browsing through the list of titles for both the AES and the NGCD and I noticed that a lot of the games were the same.
Are there really noticeable differences between the two versions of the games? Is there an overall difference or is it a case-by-case basis? Is the NGCD just a more affordable version of the AES? Are the exclusive games awesome for both systems?