Homebrewing is alive and well in the USA!
We do things a bit different than in the UK.
We boil all of our worts before fermentation and throw away the yeast pack that comes with a kit. We have a good many liquid yeasts available. At $5-$6 a dose it could get expensive. However I reuse the yeast up to four times.
I do not brew as much as I did, due to time. I made about 40 gallons last summer, mainly because I was teaching a couple of other guys how to brew.
I do kits as a base and straight extract with good stuff added.
I also do all-grain on occasion.
The Lady next door was asking me about making Whiskey last night. Unfortunatley that is not something one can do legally at home in the USA.