I buy my beef from one of two vendors at my local farmers markets that I've known for 4 years now. The first source pastures the cattle on grass and apples (shrug) but grain finishes the cows. The steaks are spectacular. It's a small operation, pretty close to eating a cow share as we'll eat from one cow for a couple of weeks until they slaughter another.
The second is a larger operation that supplies grass fed beef to most of the elite steakhouses in the city. I frankly like their pastured pork better than their beef.
As with "organic" I don't really focus on how the food is labelled. I focus on the relationship I've formed with the vendor. None of my produce is labelled organic. But I can visit the farm where it's grown if I want to.
I have a very similar approach.
We spent one summer taste testing all of the different beef available at the local farmers market- using a baseline of Costco ribeye. We tried ribeyes from American Waygu, American Highland and Red Devon. Cattle raised as naturally as possible - no hormones or antibiotics. Some were fully pasture raised. Others were pasture raised then grain finished.
The one we kept coming back to was the Red Devon 100% pasture raised - with the Waygu a very close second.
Since then we've developed a relationship with the Red Devon rancher and his steak is really just top notch outstanding. The rancher is committed to raising the best beef possible - he does things like salt his pastures with Redmond Salt in an effort to increase the minerals into the soil...and into the cattle for improved taste.
One year he finished his pork (he raises pork too) by feeding them "wine" from mash he had gotten from local wineries. Incredible.
Bone-in Ribeye from this guy is $15 lb- which is considerably cheaper than what it would cost as Whole Foods.