AH, welcome to BFC! Knives win every day over booze and gambling! You definitely made the right decision there. I also appreciate that you are new here and yet are still willing to ask questions. IMO knives make a very poor investment, but understand that some would disagree with that statement. I also think a knife hidden in my pocket is better than a knife hidden in some drawer. Again, an opinion. If you do end up selling your PM2 in Maxamet, just pick a price that makes you happy and give it a go. It will either sell or it won't. If it sells in mere seconds, don't think, "Well, crap, I should have asked for more!". And if it does not sell, don't think, "Gawd, stingy people want everything for free and now I'm going to lose money!" That's a no-win way of thinking.
Like you, I have a Maxamet PM2, Para 3, and Manix 2. The PM2 is my favorite Spyderco knife and the Maxamet blade gets used all the time, but I have 5 or 6 other PM2s, all in different steels, that also get used. Carrying them, using them, and having a choice all make me happy as a pig in sh*t! And THAT is what it is about. Doing what makes YOU happy without hurting others may be the best you can do.