i think brewers may be trying to find alterntives as is is a pretty hard hop to find atm.the shortages of this hop and simcoe and citra is why the hop companys are putting out hop blends such as falconers flight as a substitute.
The 6.9%aa stuff killed the love affair for me, turns out it wasn't even amarillo. I was gifted a small bag of amarillo from another member cleaning out his hop stash a few months ago. It made a cracker golden ale which i thoroughly enjoyed. Such a good hop.
I cracked a keg of APA this week with Simcoe throughout then a 1g per litre dry hopping addition Amarillo. Fantastic. I went off it for a while though I'm still a big fan, yet I use it with more reserve now.
This was one of my favourite hops and luckily I still have a good supply in the freezer, thanks to buying In bulk and vacuum sealing down to smaller lots. You can't grow Amarillo due to US patents unless someone has stolen some rhizome, proble be different under our conditions any way. maybe they will produce more this year?
I still have some in my freezer and use it in conjunction with other hops. However, I've found more recent season's crops have a character I don't like so I tend towards cascade and chinook for most US driven beers (and just started toying with citra and simcoe).