Well, when I restarted my computer, the new expansion installed without so much as a by-your-leave. I'm continuing my multi-generational game by just moving the next generation out and having her go on vacation for a week while she works on the outdoor enthusiast aspiration. Hopefully by the time she's finished that, I'll be able to use the new stuff without feeling guilty, ie, my daughter will have had a chance at it first. Meanwhile, I'm only playing in the evenings after the kids are in bed and not every day, which is keeping my play time down enough that I might actually be able to stretch a sim week out over most of a real week. Maybe. Here's to willpower...