My macbook fit into the safes at Pop and I hear that the ones at Poly are even bigger. If it doesn't, I would lock it in your luggage. No one will know its in there and they can't open your luggage and will usually never steal just a suitcase
Not exactly true.
It's often obvious when there's a laptop somewhere in the room from the paraphenalia lying around. Sure, some folks do put everything away when not using the laptop, but most leave power cords, mice, adapters, or laptop bags out in plain sight somewhere in the room, because these items are too small, cheap, or laptop-specific to make them worth stealing. But they are like an alert sign that there is a laptop computer somewhere about.
Then there's the completely false sense of security that comes from having something "locked" in luggage. Although there are still some of the old-fashioned hard-shell suitcases in use today, the majority of travellers use soft-sided luggage with zipper closures. Don't think that the locks on the zippers make those things the least little bit secure - the zipper teeth can be easily forced open with any kind of tool, and sometimes even by hand. Of course, if the theif wants to get into a soft-sided bag, a simple pocket knife will accomplish the feat in short order without even looking at the zipper.
What do you think the theives use to transport their ill-gotten booty? They take the luggage that's lying around in the room, toss anything small and/or valuable into it, and walk off. If they find it locked, that just piques their interest - you only lock a suitcase when there's something in it worth locking up.
Even those old-fashioned hard-shell cases are no real protection; if the theif finds one locked, he'll know there's probably something worth stealing inside it, so he'll just make off with the whole thing and unlock it later at his leisure.
So that's why I don't ever leave anything valuable in my hotel room without locking it up in the safe or with a steel locking cable.