In the 70s I had a 22 LR and 410 shotgun for a few years, sold 'em before I came to the U.S. Always wanted to get into shooting since 1981 and finally got a Henry 22 in 2002 to control ground squirrel on 10 acres in Michigan, and a Heritage 22/22Mag Single Shot pistol. Sold 'em before I came to Missouri in 2004. Bought a 22 Hornet in late 2008 and started reloading. Recently had to sell it all due to unemployment.
Before selling it all off I had great plans and a list of future purchases of rifles. Having to sell it all off has made me rethink just how many rifles would be useful. The answer is 6, two for me and two each for my teenage boys. I am thinking 3x22LR plinkers, plus a 357 Max, a 7mm-08 or 25-06, and a 30-06. I do have a wildcat idea that may come to fruition, but that is just a non-essential rifle.
When my boys have left home and taken their rifles, one 22LR plinker one other for me. Keep it simple. Simple is good.
As scootrd said, "The older I get , the more of a minimalist I become. Sometimes by choice, mostly by necessity. But it's amazing what your really don't require".
Also, getting divorced, going bankrupt, having to give your home back to the bank, and extended unemployment, will force you to become a minimalist in short order.