Since you're looking for a way to play SNK's games without spending too much, the Neo
CD would be your best bet. Unfortunately, SNK discontinued Neo CD development
some time ago, but there are plenty of noteworthy Neo CD games to be had at decent
prices. You'll get better music (in some cases; some people prefer the original home cart soundtracks), more options (the Metal Slug games have art galleries, etc.), and a built-in lithium battery for save games (no memory cards are needed; has anyone ever filled their Neo CD battery with too many saves and were forced to delete some? I can picture this being a problem, but during the 4 years I've owned a Neo CD, this has never been the case). I think you should buy one IMHO...
CD would be your best bet. Unfortunately, SNK discontinued Neo CD development
some time ago, but there are plenty of noteworthy Neo CD games to be had at decent
prices. You'll get better music (in some cases; some people prefer the original home cart soundtracks), more options (the Metal Slug games have art galleries, etc.), and a built-in lithium battery for save games (no memory cards are needed; has anyone ever filled their Neo CD battery with too many saves and were forced to delete some? I can picture this being a problem, but during the 4 years I've owned a Neo CD, this has never been the case). I think you should buy one IMHO...