I have sold my last SqueezeBox network receiver last week for $90 ... a 10 years slice of my life gone ...
Yes, and you missed the peak resale market by about 5 years. For a couple of years after they were discontinued used units were selling for 3-5 times the original new retail price. Perhaps speculators drove some of this last minute CCA purchase frenzy.
The thing is, if they would add a line out to the Google Mini (which I expect them to do), it would solve the problem for all but a few of us DAC loving audiophiles. The Echo dot already has that.