I'd say over the course of the 8 years or so we had the setup, it saved us $1600 in homeowner's insurance premiums, and when we sold it helped us get maybe an extra $10k out of the sale price, so around $11600 recovered for around $55k spent total. By the numbers, it makes no sense to do this. Realistically by the numbers, it never makes sense to do anything to a house that is anything above the minimum legal requirements and what is currently trendy and en vogue with buyers. Another thing I did on that house that I liked but made no financial sense was to put in /very/ good windows all around (around $26k spent) which netted around $5k at sale.

All in, I spent around $90k in 12 years on the house, and the outcome was maybe $25k returned at sale. When you look at anything like that you should really consider how long you think you're going to stay there. I had intended to live in that house quite a lot longer, but life situations changed and I had to move out of state, so off to sale it went. Nonetheless, I don't regret any of the improvements I made because I got to live with those improvements and have a house that matched my needs/wants/desires. If I buy a house again (I'm currently renting), I'll probably have it custom built. There's simply no reason in my mind to put up with lowest-common-denominator mediocrity and normalcy in the highest cost thing you will likely ever purchase in your life, and the folks who do that to return a few higher percentage points of ROI at sale are treating themselves like they're a renter in a rental property, rather than treating themselves like a homeowner. A house isn't an investment, it's a place to live that you can do pretty much anything you want with it.