I'm still brewing 11 gal batches to yield 2 full cornies, and normally my 4-tap kegerator has a different beer on every tap. I feel like it's not that much more work to brew 10 gallons than a 5 gallon batch and I'm not crazy about just getting into enjoying a beer when wham - the little 'ol single keg kicks. And I do have friends visiting pretty often, and sometimes give away some bombers and/or growlers, although insist on getting the empty growlers back!
I do like the idea of brewing a 2.5 gal lower gravity beer to grow a yeast cake while yielding BEER. Also, I keep telling myself to try more often to split batches (different yeasts) but rarely do that either, I guess because I get focused on the fermentation regimen which is easier to control with same yeast working the same in two buckets going in my ferment fridge.
Although due to a health issue I've been nearly completely on the wagon for about 6 weeks and hoping that won't last too long. So I have made a couple beers in the meantime that do well to age a few months, namely Skotrat's Traquair House Ale clone (wee heavy), and have a batch of Rochefort 8 clone bubbling away in the ferment fridge currently.
Now in my late 50's I might have to tone down the production but honestly, I only brew about 10 batches per year, and at least a couple of them are taken to lawn parties or on fishing trips.