I'm sure it was, although those tend to be the most satisfying purchases once it is in hand. I think all of my most valued props made me cringe slightly when I paid for them. No regrets though. I've been on a PKD reading spree, I just finished Ubik, The Man in the High Castle, and finally decided to let myself read Do Androids Dream of Electric Sheep? (I've been afraid it would not measure up to the film, ha!). This summer I want to build up a "laser tube" as seen in my mind's eye. Also, maybe during lunch breaks at work, I plan on mocking up a aerosol can "Ubik" label.
I recently made a BR purchase but will sit on that until it arrives and I can photograph it.
Oh, and re: pregnant Replicants, I don't know how that really sits with me for what its worth. Bookwise they completely lack empathy, while Batty discovers it in the film, but only with his own death impending. I have a hard time with the idea of an empathy-less entity reproducing. Its an interesting twist though and I think you should explore it (caveat- I haven't read you additions yet) it could result in an interesting angle. When thinking about a replicant caring for a child I can only think of the spider scene from the book though.