The MX-3000 Universal remote remains in high demand. Occasionally a used unit can be had for $250-$300. New ones usually go for over $500. Browse this site, hopefully you will find what you need.
There also seems to be a lot of people searching for Reviews on the MX-3000 remote, as I find them I will post links, I've been considering buying one myself so I have done lots of searching.
Doing a search for a Remote Control MX-3000 Review, this one looks good:
SPECIAL SALES! UP TO 70% OFF SOME OF THE HOTTEST R/C TOYS
Universal Remote Control Model MX-3000
$624.99 
Time Left: 4h 35m | |
| Universal Remote MX3000
$49.00 (1 Bids) Time Left: 2d 7h 17m | |
| MX 3000 UNIVERSAL REMOTE & MRF 300 RFX BOTH BRAND NEW!
$200.00 (14 Bids) Time Left: 3d 5h 33m | |
| Universal Remote MX-3000 Touchscreen
$199.95 (0 Bids) Time Left: 3d 7h 8m | |
| Universal Remote MX-3000 Black Version MX3000 MX3000B
$399.99
Time Left: 4d 39m | |
| URC MX3000 MX-3000 MX 3000 Universal Remote New in Box
$499.99
Time Left: 4d 8h 24m | |
| Universal Remote Control MX-3000 Color Touch Screen
$0.99 (1 Bids) Time Left: 9d 7h 49m | |
| Universal Remote Control MX-3000 Color Touch Screen
$249.99
Time Left: 20d 7h 56m | |
| New - Universal Remote Control MX3000 MX 3000
$605.00
Time Left: 23d 3h 7m | |
| MX3000 Universal Remote Control NIB
$799.99
Time Left: 24d 2h 38m |
