This is a very suspiciously premature discontinuation. Sony has in the past PREMATURELY discontinued extremely memorable products because they undercut Sony’s own higher products (HDR-HC1).
The EX1 is a nearly perfect professional P2 mid-size camera too cheap for the market, too close to the recently released Z7 and Z5 and too close to its bigger more expensive brother the EX3 to be of any use for the company specially in these tighter budget times. The EXs are also undercutting Sony’s XDCam line severely in a time when news operation budgets are being reduced nationwide and low budget freelancers are replacing company staff in roves.
If I had an EX1 I would not sell it for the world unless I truly needed another capability. There is nothing wrong with a “discontinued” product that is functionally a top of the line product.