If 1999 is designed around character choices and resource management, I might actually give it a try. If the mode is about finely honed twitchy skills, I'll probably stick to easy mode. I play the series for the atmosphere, and I don't need to be good at straferollshootdodgerunduck to accomplish that (and don't particularly want to be).
I'll still wait for it to get to sale prices, though. With my backlog, I've got no business buying full price games, particularly ones that aren't "core" for me.