George - I don't think there is a chance of it now. You would still have $270 or so in the silver at current spot price around $22.68 an ounce right now. There's probably another $40 or so in stamping and mold fees, plus the box and capsule. I'd say somewhere around $15/ounce would be the top.

Here's some interesting info:

Silver price when first Mirage and Sierra Sid's $200's released in 2002 • $4.30/ounce
Silver price when first Four Queens $200's released in 2003 • $4.82/ounce
Silver price when Treasure Island Siren $200's released in 2004 • $6.09/ounce
Silver price when last Four Queens 12 ounce $300 released in 2009 • $16.32/ounce

My dates may be off a little matching the releases with the spot price that day, but you get the general idea. Imagine, when the TI Siren $200 was released, it didn't even have $100 worth of silver that day.