moviefreakedmind said:

I'm actually genuinely shocked that Lucas didn't replace Bossk with CGI. I love him, but his costume always did look pretty rubbery. I mean, if you're going to """modernize""" your movies (or whatever the hell he was doing), why replace perfectly good VFX shots with CGI, but not replace rubber lizard suits with CGI?It makes no sense.

Probably because it would be too difficult to do seamlessly. I'm sure it's crossed his mind, but the time and effort and money that would be required probably made him go "meh, I'm just glad I can make the Ewoks blink now."