To Champ Dino or not to Champ Dino

KingDon

I managed to finish off my Devil Dino in the last anniversary and even picked up an extra 3 covers, however I know need to deicide if I want to champ the little blighter or not.

I currently have Dino at lvl 160 and with the 3 additional covers coming from the daily rewards, this would give me 6 covers in total.

Dino would be my 1st 4* to champ, I have just finished my HB and am looking to champ when I get my next cover (along with XFW and PX (and 4Pool if I can get a Black or Purple cover)

However I am just not sure if it is worth the iso spend on a char that only gets used for 10/11 days of the year, while iso is not an issue at the mo (sitting on 1.6 mill although that will go quickly when the 4*'s start to get leveled) but I am just not sure.

Has anyone else been in the same boat, what did you do? do you regret it? was it worth it?