DOCS.FR $20000
DOCS.ES $15000
DOCS.COM.PL $10000
DOCS.HU $5000
DOCS.MX $5000
DOCS.ME.UK $5000
DOCS.CO.HU $3000
DOCS.COM.RO $3000
DOCS.UK.COM $3000
DOC.COM.RU $3000
DOC.SI $2000
DOC.COM.RO $1500
DOCS.NET.NZ $1500
DOCS.NET.PL $1500
DOC.NET.PL $1000

WHOLE PORTFOLIO: $50000

"docs" results in 13,600,000 and "doc" in 30,040,000 monthly global searches (see Google AdWords).

Payment via Escrow (50/50 fees).

docs dot de sold for over 30000€ to Microsoft in 2010
docs dot com dot cn sold for $31000 to Microsoft on july 2010 (source)
doc dot io sold for $24600 to Microsoft on june 2010 (source)
docs dot co sold for $13000 to Microsoft on october 2010 (source)
docs dot in sold for $5805 to Microsoft on may 2010 (source)