The SX-100 is a classic radio. Same basic design as the SX-88 - and much
slimmer. It actually fits nicely on a shelf that is not too deep. It uses
the 50 kHz if strip and has great selectivity. If there were only a few
receivers around, it might be a very valuable receiver. But, it is fairly
common. The demand is higher than on the SX-101, so the price will normally
be a slight bit higher that for the SX-101. In terms of performance, the
SX-101 is a ham band only SX-100, with more mechanical stability.
Mechanical stability on the SX-100 is terrible, thanks to the otherwise
wonderful gear drive system. On 15 meter cw, with full selectivity, you can
drop a pencil on the desk and lose the station. Nevertheless, it is a
classic radio.

I bought one in excellent condition, with a nice Hallicrafters speaker for
$100. Also bought a basket case SX-100 for $35.

How someone else spends their money is their business.

Colin K7FM