I've been brewing on average 20 - 5 gallon batches per year for the past few years, I've settled in on maybe two yeast strains for particular styles, but enjoy trying other yeasts that I've not used in the past. Not interested in harvesting yeast, so no cost savings in it for me.
@erockrph, I've used the Lalbrew NEIPA dry yeast with my standard NEIPA recipe and it rocked, I would not hesitate to use it again.
My 2 cents on house yeasts though is that when a craft brewer uses the same house yeast on ALL of their IPA's, they all taste the same even though the malt bill and hop bill are different. I get cost savings, but I enjoy tasting creativity more which leads me to drinking more.
From my experience that's true for some craft brewers as well, at least to the extent that all their beers will seem to have a common thread taste-wise.
As far as house yeasts, I don't have many currently as I've always switched my yeast up. But lately I've really been wanting to get a really consistent process and list of ingredients that I use and just brew the beer I like instead of making something "that sounds good at the time" and then it not turning out and having 5 gallons of something I don't really enjoy on hand. Kind of done with that. I'm trying out S-189 for the first time in a pilsner right now. That may become my house lager yeast if it's as good as everyone says it is. Otherwise, I've always liked 34/70/the liquid variants. I wish there was a dry version of WY1450, like someone else said. That yeast is awesome. Otherwise, I'm using US-05 for most ales, Irish ale yeast for UK styles and Omega Hornindal kveik for the same ale styles but for the dead of summer.
I am similar. Over the last year or so I just been brewing 4-5 recipes I like over and over. I have brewed yellow beer then amber beer then yellow beer then amber beer, ...
For yellow it’s mostly Pilsners. I am loving CAPs right now. I mix in a blonde ale occasionally. I like Diamond Lager and 34/70 yeast for these. I want to come up with a good Dortmunder.
For amber it’s APA, American Ambers, and bitters. I mix up the hops for variety. I also vary yeast here. I have used BRY-97, MJ M44, Lallemand Kölsch, and MJ M36. I like all of these. I am using the new CALI by CellarScience right now.
What I find is I always like these beers. I can get variety elsewhere 1 pint at a time. I hate when I have a batch full of mediocre beer because I really don’t like the style or I built a bad recipe.