Cool set up dood! The COB's are definitely a whole step up from P300 type as you correctly pointed out. You clearly stated that lots are better than P300 but that doesn't seem to be enough for the zealous types..
The guy said he has a VERO Cob and bought the P300 5 years ago. I was in a similar boat then and since bought better lights.
No one is arguing that there are tons of better choices now...
Some of y'all just like to argue..