I think halloween has gotten a bad rap over the the last 10 - 20 years. I personally love halloween, second only to christmas. AS for reasons, who knows. All i know is that in my case i think part of the reason i love it so much, might be due somewhat to the fact that i was brought up in one of those strict, pentecostal churches, and our preacher had all us kids' parents brainwashed into believing Hallowen is some kind of devils holiday. So of course, they tried to pervert it and make into some crappy harvest festival crap. well now that im a adult and have turned away from that type of hard core religion i find great pleasure in halloween and have a lot of fun decorating, carving, and enjoying the company we get that night.
Also, i have noticed that a lot of people on halloween, as in my case as well, choose not to put up all their halloween decorations until jsut a few days before the actual day. right now i look outside in my nieghborhood and theres only a couple pumpkins out on front porches. this will change come this coming weekend when just about everyone will be doing something. this is a big trick or treater nieghborhood, so the jack o lanterns come out in force, just long enough to where they wont be rotting piles of mold by thge time the actual night gets here.
I personally like to spring my entire halloween didplay on the nieghbors the day before halloween, keeps them guessing as to what im planning on each year.