C'mom Donny boy ...... it's not that simple. There are countless times when using extra amps would be an unnecessary burden. It's not just as simple as "carrying" a monitor ornot. It's about space, sound and looks. Sometimes, the onboard speakers are EXACTLY what is called for.
I realize that it's not everyone's bag, but it is no longer a cryteria for "pro level". Speakers are a neccesity....some prefer built in, and some can deal with the extra bulk that outboard provides. I use both. I NEED both. there are too many times that I use the kb alone ..... amps are not always an option.
I think it's time to lay the debate to rest about speakers or no-speakers. It's clear that there are plenty of preferences on both sides of the story. We can all get what we want...and we can all give advice as to WHY we made our choices....the important thing (as always) is user comfort. You have to be happy with your choice.