That is what my wife asked me yesterday as I packed up a small package going out from Eriochromes Bargain Bin. I told here that this package contained unbuilt models purchased like 2 years ago back when I planned on starting a whole new themed army. I also told her it would cost about 500 dollars to build that army to the proper level.
I also noted that I really did not need another whole army as I have 2 that do not get played much. I cannot collect every GW game or product. I have to be selective. I have more than enough 40K stuff(8K of Marines plus 2K Nids) to have some fun games. I like the models and might buy a few new specific ones to supplement my forces at some time in the future (Landspeeder Storm I am looking at you) but do not need a whole different army.
I have also got back to trying to fill in some holes in the Blood Bowl stuff which should be showing up on the blog soon. 20+ year old minis can be expensive (but strangely not really more than GW charges for the current blood bowl minis).