I also despise the groans and giggles. Primarily because they happen so frequently and we have no control over it. On the other hand, i absolutely love the laugh for the Hutt trainer - it's something that you don't HAVE to take out and use, after all. And it's not like you don't have other options, even in the field (if you want to invest the cartel coins or creds).
It's ironic that they added groans and giggles in (really, how many people were asking for this???), but have removed this (intended or not, we still have no idea).