I was thinking the same thing. I have Cap 6 on my "find" list for when I dig through long boxes, but every time I find one, I'm not sure it is the right one as the prices on eBay are rather bleak compared to other "hot" movie books.
To be sure I'm not onto the wrong issue, these are the ones in question, right:
Variant:
http://www.ebay.com/itm/CAPTAIN-AMERICA-6-1ST-WINTER-SOLDIER-CGC-9-8-SS-Signed-Stan-Lee-1ST-PRINT-/271121263829?pt=US_Comic_Books&hash=item3f20162cd5
Orig:
http://www.ebay.com/itm/Captain-America-6-strict-NM-NM-9-2-Out-of-Time-Part-6-tons-more-Kermitspad-/360534183696?pt=US_Comic_Books&hash=item53f1830f10
Those are the right ones, although the version with Bucky/Winter Soldier on the cover is the variant edition. Cap #14 still sells a bit higher than these issues based on the cover, but I expect #6 to pass it.
Also, just looking at GPA, I see the last sale for a 9.8 Variant #6 was for $150.00, so it's moving upward.