Haha welcome to my world, jarjarxboner!
I know it's a mental illness. The inability to stop buying things. I would say that it isn't impulsive, but it is in the sense that I buy a game like Tekken 6 for example, I have to own Tekken 1-5 and whatever spin-off games that are related in any way. I wanted to buy a couple Star Wars books, magazines, figures, etc. I've ended up with around 50 books, every Star Wars special magazine I could lay my hands on, every single issue of Star Wars Insider Magazine from #23-#164 which is current (pre-#23 the magazine was called Lucasfilm Fan Club), and tons of figures, statues, models, Bluetooth speakers, card sets, etc. And then I have even gone out hunting for the 22 issues of Lucasfilm Fan Club and have 18 of those so far!
And my wife bless her heart...she bought me the Hamilton Collection Star Wars lamp. The "pole" is Anakin & Luke's lightsaber, Vader's lightsaber and Luke's second lightsaber from RotJ that was green. They are standing on the base and go up under the shade. Each blade light up and then you have the standard bulb in the top. The shade has gorgeous original trilogy artwork on it. I think she paid $225 for it.