I must've been the only kid who wasn't fiending for a lightsaber after seeing A New Hope as a kid. I wanted the Millennium Falcon more. I wasn't impressed seeing (in George Lucas's words) an old man and a cripple fence in slow motion.
Then Empire Strikes Back came out and changed the game. Ever since then, yes, I wanted a lightsaber. I've had ghetto "light swords", one of the first licensed lightsabers and a few of the recent better plastic and metal replicas.
When your lightsaber is bigger than you as an eight year old, it's kind of hard to let it hang off your belt. That didn't matter though because I had a lightsaber. I remember taking it everywhere and every kid I encountered became my new best friend. This particular saber met its end when a butthead kid I didn't even know bent the plastic blade like a straw going into the trash. What an asshole.
Years later when I ran the occasional creative meeting at the record company, I had no idea what I was doing at the time and sometimes it devolved into a summer BBQ without the food. To restore some semblance of order, I had Obi-wan's collapsible lightsaber to designate topics and the appropriate speaker. It was asshole behavior on my part, yes, but my meeting 'gavel' was a plastic light sword. It kept order and people smiling.
THE GOOD STUFF
In recent years, various companies have released lightsabers that are a work of art. After a bit of a rocky start, Saber Forge has jumped to the forefront of sabers for various uses - display, stunt, cosplay, etc.
My personal favorites have been the Epoch, Venomous Fury and more recently the Templar. I waver among green, blue and blood orange blades but for sure, I want a Crimson sound font. It's got that badass bass to it.
I absolutely do not need it and could use that money for something else. Sometimes you just want something just because you want something. Simplest explanation right there. I have no idea what I'd use it for, (perhaps as a new gavel during production meetings), but having one of these would just be awesome. Then again, I could join one of these and get some good cardio in:
Before you go, watch this. Makes me jealous I was still shooting in analog with no CGI when I was making little movies in college. This fan film is ridiculously well done, (this is a film made by some talented fans and 'fan' films this good should just be called films). Who doesn't want a lightsaber after watching this?