You may have answered your own question:
I don't need the last word in audiophile quality for the office.
If you purchase good quality in wall speakers you will get good sound. If you use your office as I do, you may find it difficult to discuss business and listen to music at the same time. Many of my long distance conversations wind up with me turning down even the small Cathedral radio atop my desk.
I use B&W Signature 7NT in wall's for my HT setup. They're biwired / biamped, driven by high quality tube electronics. My expectation is only that they deliver good quality enjoyable music, and they do.
On the other hand, if your office is your escape and second listening room, (a bit more fun than work) perhaps floor standing speakers are the way to go. At least you can take them with you when (and if) you ever move.