Well I think so.........
I have been seeing a rash of CAN BUS questions.
It's beyond needed for the guys that don't have a clue and even the ones that do keep a grasp on basics.
Even I benefit all the time form re-reading old 's or watching stuff like this.
It makes you think and that breeds new techniques/repair strategy.
I have been recording and playing stuff back, to see what is needed to make.......... say a lock be emulated with success!
http://www.iqsdirectory.com/data-loggers/new-york/
I think the Tektronix stuff is a ton of fun to watch too........
https://www.youtube.com/channel/UCAzy_-kKC2PJHLc1CekiwTg
http://www.eetimes.com/document.asp?doc_id=1298071
http://teledynelecroy.com/