Of course people in this thread prefer home grown to commercial. Kinda the nature of the beast here, right? But let's look at a couple of things:
Commercial flower is tested. In California, at least, cultivators don't choose the bud to test. Lab techs come into the grow operation and select their sample, themselves, in the quantities they need, from the available product. Growers can probably game it if they try hard enough, but it's set up to get an honest test.
Concentrates are all over the place. Some are great, and they get the whole terpene profile and the whole entourage effect. The high is great, the medicine works, and the experience is what people are looking for. But a whole bunch of it fails that test, and can even be dangerous depending on remaining solvents and a number of other factors. Consumers have to be careful. Some home growers make their own concentrates, and for consumers that's even more dangerous because they don't go through the testing and have the safeguards that commercial concentrates do (which isn't good enough even commercially).
There are some real advantages to home grown flower over commercial. For one thing, commercial has lots of economic pressure to get to market fast and economically, as TSD alluded to in the post above this one. That means things like machine trimming to save costs, short drying and curing times so product isn't tied up and out of the market, and less care for the long term preservation of the product so that if it sits for any appreciable time the consumer winds up with dry, odorless buds. And for a great deal of cannabis product, potency and end user experience is not even a consideration since much of the product will be aggregated with other product and used for everything from pre-rolls to tinctures and other applications where a great flower isn't needed and would be too expensive.
Conversely, if you're a connoisseur of flower, commercial is tough for you as there is very little commercial flower sold that is top quality; where time for excellence in curing is spent; where buds are hand-trimmed and handled gingerly to preserve trichomes; and the produce is stored with longevity in mind. All that stuff costs money and time that are the enemies of commercial operations, but are actually the goal of small craft growers and indoor specialists in exotics. Naturally, we here are among those who appreciate the carefully grown, dried, trimmed, cured, and stored buds. But for most folks, the only two questions they ask are "Does it get me high?" and "Can I afford it?" And for that vast majority of consumers, commercial is definitely the way to go.
However, bad news for people who feel as we do, I think. I think the small craft grower is on his way out. There simply won't be any commercial craft growers left a few years from now. A few are struggling to hang on by their fingernails, but the vast market doesn't care about what craft growers care about, and they simply can't compete with the McCannabis operations. Someone even said the other day, "Does anyone even smoke flower, anymore?" The legal market is changing how people consume cannabis.