For me, the answer lies here... We used to have 3 home brew shops in this city. One closed it's doors not long ago. I can only speak from limited experience, because I only walked into the place twice, and the experience wasn't that great, not like the OP's because I had very very little brewing experience but I still knew the guy was all about the sale, not about the beer.
So now we are left to two choices. When I walk into one shop, I get excellent advice and service from someone who is really passionate not only about beer, but about the science behind it, the art of perfecting it.... yatter yatter, I don't want to blow wind up anyone's arse.. his grain is well stored, his hops are vacuum sealed and refrigerated, a huge selection of liquid yeasts, pretty much everything. I go there as often as I get time to, if not to buy anything, just to chew the fat and learn a thing or two, not only from him, but from other customers. most of the times I'm there I 'll be there for an hour or longer, In that hour I reckon anything from 2 - 15 customers will walk through the door. I watch and listen some more. Crack my grain and let him sell kits and bits to the punters..... oh yeah... more often than not I never seem to have one of these people line up behind me to crack grain... never thought about it until now
At the other shop in town, he sells grains in round chinese containers in 250g batches. His hops are sitting out on the shelf where they have been for the last 2 years. yeah he is reasonably passionate about his beer, more so about his spirits I'd hazard a guess... and when I see customers walk into his shop, nearly all of them buy kits; I'm talking 99% of them, and nope, it;s not a quiet shop, I'm sure he's doing ok. I reckon if I asked him about the differences between conversion with a 1 degree temp difference in the Beta Amalyse phase his eyes would just glaze over... But it's not his game, and I can see that, I get it, and it's not his fault if that's not the market he wants to be in. I still see a loyal tribe of happy customers come and go from his shop. I reckon the figure of Kits and bits/Spirit Makers to AG brewers would be in the vicinity of 95:5 out of 100. Sometimes I think this AG thing not only makes people beer snobs, declaring anything commercial as 'megaswill', but it also inflates their self imposed importance level in the food chain...
At the end of the day, if you're not happy with the shop, don't go there. But it's not his fault he doesn't tailor to all your needs. Sure his morals may be questionable if he is happy to provide people with questionable info for a profit gain, but if we're going to headhunt every retailer that does that in this country there sure is gonna be a big vacuum at the end. Your options are open, just buy somewhere else, reduce the stress level nad have another beer... Life's too short