No kidding! Tree House was founded in 2011. You won't find anyone calling their beers formulaic garbage.
I understand the want to change it up. I seek out breweries that I haven't been to before or that have a deep catalog of beers that aren't found on shelves. Flights are a great way to try those beers, and their styles are usually of more variety.
One of my favorite breweries is Hermit Thrush in Brattleboro, Vermont. They specialize in sours, mostly aged. They source their aging barrels from all types of industries. Not only does the same recipe result in a different beer across multiple barrels, the same recipe results in a different beer each time a barrel is used.
If you look, you will find so much to explore. The space might feel dominated by IPAs, but other styles are benefitting from the rise of beer culture.
Speaking of Tree House, I think we're seeing a shift where the East Coast is now the dominate force in the craft brewing scene. I've lived on both coasts multiple time and typically would always vouch for West coast beers dominating for a long time, but the stuff coming out of NE and NYC these days is amazing.
Even more shocking to me is what happened to ciders. Even with Seattle/WA ciders, which used to be far better than east coast stuff, taste like soda by comparison. There are a ton of incredible ciders on the east coast that are much drier, more nuanced and drinkable than current West Coast ciders. East coast ciders are a nice happy space between a sparkling wine and a beer. Honestly disappointed that the west coast has remained relatively stagnant recently.
Hermit Thrush is an amazing brewery, and I stock up every time I’m in the area. I strongly agree with your comment, if you look outside of IPAs there are lots of really creative breweries in New England doing great things.
You might be missing out on some really goods ones with this strategy