These auctions (not my auctions) on video game auction website chasethechuckwagon.com might interest Atari 2600 collectors here:

COSMIC ARK for Atari 2600 Complete in Box! Mint! CIB
chasethechuckwagon.com Item: 0000208602 -- COSMIC ARK for Atari 2600 Complete in Box! Mint! CIB
Starting At $8.00 Ends: October 31, 2009 12:00:00 AM EDT

Zaxxon for Colecovision Complete in Box! Mint! CIB
chasethechuckwagon.com Item: 0000208884 -- Zaxxon for Colecovision Complete in Box! Mint! CIB
Starting At $8.00 Ends: October 31, 2009 12:00:00 AM EDT

GORF for Colecovision Complete in Box! Mint! CIB
chasethechuckwagon.com Item: 0000208885 -- GORF for Colecovision Complete in Box! Mint! CIB
Starting At $11.00 Ends: October 18, 2009 12:00:00 AM EDT

TURBO with Wheel for Colecovision Complete!
chasethechuckwagon.com Item: 0000208886 -- TURBO with Wheel for Colecovision Complete!
Starting At $15.00 Ends: October 31, 2009 12:00:00 AM EDT

WARGAMES for Colecovision Boxed!
chasethechuckwagon.com Item: 0000208887 -- WARGAMES for Colecovision Boxed!
Starting At $6.00 Ends: October 18, 2009 12:00:00 AM EDT

FIRE FIGHTER for Atari 2600 Complete in Box! Mint! CIB
chasethechuckwagon.com Item: 0000208601 -- FIRE FIGHTER for Atari 2600 Complete in Box! Mint! CIB
Starting At $8.00 Ends: October 31, 2009 12:00:00 AM EDT

PRESSURE COOKER for Atari 2600 Complete in Box! Mint! CIB
chasethechuckwagon.com Item: 0000208605 -- PRESSURE COOKER for Atari 2600 Complete in Box! Mint! CIB
Now At $8.00 Ends: October 31, 2009 12:00:00 AM EDT

KABOOM! for Atari 2600 Complete in Box! Mint! CIB
chasethechuckwagon.com Item: 0000208603 -- KABOOM! for Atari 2600 Complete in Box! Mint! CIB
Now At $8.00 Ends: October 31, 2009 12:00:00 AM EDT

STAMPEDE for Atari 2600 Complete in Box! Mint! CIB
chasethechuckwagon.com Item: 0000208604 -- STAMPEDE for Atari 2600 Complete in Box! Mint! CIB
Now At $8.00 Ends: October 31, 2009 12:00:00 AM EDT

Colecovision System Complete in BOX! CIB! 2 BONUS games!
chasethechuckwagon.com Item: 0000208888 -- Colecovision System Complete in BOX! CIB! 2 BONUS games!
Starting At $100.00 Ends: October 18, 2009 12:00:00 AM EDT

SURROUND for Atari 2600 Complete in Box! Mint! CIB
chasethechuckwagon.com Item: 0000208598 -- SURROUND for Atari 2600 Complete in Box! Mint! CIB
Starting At $8.00 Ends: October 24, 2009 12:00:00 AM EDT

MINER 2049er for Colecovision Complete in Box! Mint! CIB
chasethechuckwagon.com Item: 0000208883 -- MINER 2049er for Colecovision Complete in Box! Mint! CIB
Starting At $10.00 Ends: October 31, 2009 12:00:00 AM EDT

Q*BERT for Colecovision Complete in Box! Mint! CIB
chasethechuckwagon.com Item: 0000208882 -- Q*BERT for Colecovision Complete in Box! Mint! CIB
Starting At $9.00 Ends: October 31, 2009 12:00:00 AM EDT

MOUSE TRAP for Atari 2600 Complete in Box! Mint! CIB
chasethechuckwagon.com Item: 0000208600 -- MOUSE TRAP for Atari 2600 Complete in Box! Mint! CIB
Starting At $8.00 Ends: October 31, 2009 12:00:00 AM EDT