All things BP related has been an obsession since I heard a panel of the world's leading preventive cardiologists at a convention (I wasn't there, just listening to recordings of expert panels) literally pounding the table and raising voices in fury about how blood pressure was the "lowest hanging fruit" for preventing death and disability, but everyone from governments, to (shockingly) front line doctors, and patients weren't taking it seriously enough.
When one was asked, in light of the continuously dropping standard for "normal" bp numbers, where they saw the evidence leading regarding how much lower long term health benefits would likely continue to be found, he said "as low as you can get it without falling over".
I bought a pressure cuff the next day, and started telling my doc exactly how we were going to get me into the ideal range, lol.