MGM 16024 old style, Is it worth sending for repairs?

[crazyjr]

I have an MGM 16024 that is glitching bad, It's the old style fiberglass cased one w/V.2.31 programming and plugs instead of wires. Is it worth sending back to be fixed? I think the reciever wires are the culprit, they are frayed at the esc and i tryed to lengthen them once to reach in my Gmaxx. It still works, except for the glitching. Is it worth sending back for repair and possibly update in program? Or, Am i better off getting a newer one? Is there any differences between the older and newer, except for the shrink and wires? I do know its an opto, so not worried about a BEC. I had some troubles with my 16018 (newer one) and got to send it in as well, Would it be worth it to send the old one in as well. I got some plans for an 8s beast and if this esc can be repaired, that would save me a bundle of money. Thanks