In Leipzig, Monday, Feb 3, 2014, per this announcement:
http://translate.google.com/translat....net%2F&anno=2
Altair 8800 CPU Board Working *TESTED* reproduction
$790.00
MITS ALTAIR 8800 B Original Vintage Microcomputer
$5250.00
MITS ALTAIR 8800 Vintage Computer w/ Keyboard, Floppy, boards - Buy It Now
$9275.00
Vector 8802-1 S-100 BUS Plugboard (S-100 Altair 8800 IMSAI 8080 SOL) VTG OEM NOS
$57.50
S-100 backplane motherboard bare PCB 9 slot (for Altair/IMSAI)
$30.00
MITS ALTAIR 8800 Original Vintage Microcomputer with 14 boards - Buy It Now
$8900.00
MITS ALTAIR 8800 Original Vintage Microcomputer
$5000.00
Altair MITS 8800 CPU Parts Kit not IMSAI 8080 S100 (board NOT included)
$69.95
Vintage Computer Notes Newsletter Altair MITS Nov 1976 Vol.2 Issue 6
$99.99
Altair MSAI Douglas Electronics 11 DE Prototype Card S100 circuit board #AX44
$69.00