YOu want cheap led tubes?...i got your supplier!
http://asymptech.com/store/index.php?act=viewCat&catId=51
I did an install with 16 of these last summer, i forget which ones i bought but i know they cost nomore then $45.00 each. the install was a tanning salon and the tubes still run perfect. they are the same thing the adj/chauvet use..probably same damn company making them.
I also ordered a few lasers from these guys before, got dhl shipping so the cost went up a bit but perfect service.
the common problem i seen with pocket scans was a resistor burning out, its been a awhile but i can ask my tech what the exact problem was since he did the fixs himself.
led's and digital lighting (video projector connected to computer servers) are for sure the future. highend really got the video ball running with the Catalyst and now the cheaper companies are following suit like Elation offering a similar product for $900 these days. leds are mostly all from china/hong kong/ etc so the prices are started out low but the middle men (american dj, chauvet, etc) are marking them up..still there are ways to get these fixtures at low prices.