I know exactly what you mean! In my eyes, the house is always a work in progress.
YES, my house suffers the same fate as yours. Never good enough, even though it is fine.
That is the reason I stayed away from Pinterest for so long, and still force myself not to look at the pretty rooms and stuff when I'm on there now. I would drive myself nuts dreaming of the perfect house. I often look around my house and get cranky about the stuff I'd like to do--mostly because I always know there's a better use of the money and my husband's not into that stuff so I'd be on my own, etc. I think it's harder when you're home a lot, because you're constantly looking around and noticing things you'd like to see improved. I did that a lot on maternity leave, but now that I'm back to work and preoccupied with baby stuff in the evenings I only have those issues on weekends when I'm there for extended periods of time. I have little things on my list--new dining room chandelier, new storm door, new bathroom sink, photo wall in our office, a couple other blank walls, storage in my son's room, desire for a TV in my bedroom--but I keep telling myself we don't NEED them. But then I think how much those things bother me, and if I could just fix them for a little money, it would improve my overall quality of life. Tough call, for sure.
I feel the same way! There's nothing technically wrong with my house. But, I can find a million things I want to change about it. However, my husband and I are not very skilled in the home improvement department. I so wish he was more handy, but that just isn't one of his strong suits. We have no idea what we're doing when it comes to the big stuff- like pulling up carpet, laying tile, changing countertops. And HGTV just reinforces all of these changes I want to make. Not only that, but my husband is not so thrilled about spending all the $$ I'd like to put into the house either. So, needless to say, we haven't gotten very far.