In the coin shop I bought most of my big silver at, back in April 2011, there was also a Kushan coin offered, for what I recall being a three-digit price (which, at the time, meant about $25).
The Kushan coin supposedly pictured "the deity Vado" (I don't recall if anything else was mentioned). I knew nothing about Kushan mythology, had never heard of such a deity, and wasn't yet particularly interested in ancients anyway, so I ignored that coin (and bought some other ancients elsewhere eventually, for lower prices).
...It was still there last time I checked (sometime late 2013); with some luck - and considering that shop's apparent tiny turnover - it might still be there now. If it's really that cool I might well buy that coin one day.