I've seen some people use caps lock even when typing just one capital letter - mainly older ladies who learnt to touch type on mechanical typewriters that required some force to hold both shift and a letter at the same time.
If you're not one of these people, then it's unlikely that you'll miss the caps lock key. I've had my CB for a month or so now and have barely noticed that it isn't there.
IIRC there is a way to reconfigure the search key as caps lock if you really feel you need it.