Hmm, it will be a bit more realistic if using command prompt instead of graphical panels, and i think i would try it at least, but im sceptic. Uplink also has possibility to write commands in command prompt, but players dont use it, cause it takes too much time, while youre traced.
I think that to find players You need to decide which audience You want to set this too. Players who would like a command prompt would probably demand very realistic commands and actions, and its hard to achieve if you havent hacked too much in your life (I think HackThisSite.org made some programming cometition to make realistic hacking game - you can check it out). Others would probably think that writing in prompt is boring and wont even try.
If I were you, with idea to make hacking game i would rather make it like uplink, with graphic etc, but added some features that arent avalible there and a bit more "on time" -> hacking clone of facebook, or posting fake "tweets" to discredit someone, or even hacking personal computers with trojans to steal data/pictures and blackmail someone. Also contracts with police to track other hackers and so on..
So in short. In my opinion "retro hacking" doesnt tell if i would play it or not. Quality of quests there, maybe some main plot if planned, or some nice career mode "from zero to hack hero" would tell if someone would play it or not. Worth trying.