If having a coffee maker in your room at a resort where this is not standard is really important, I would DEFINITELY take it along myself.
You MAY be able to request one from housekeeping. But then they may not have any available for you.
You'll want to take your own supplies also (coffee, filters, creamer, sugar...) Even if housekeeping sends up a coffeemaker, your Mousekeeper probably won't be set up to replenish your supplies each day since this wouldn't be part of the normal room upkeep. And they might not have coffee cups.
I was at the YC in December. I packed my 4 cup coffeemaker, a small tupperware container with my favorite Starbucks Colombian coffee that I ground at home, and a little ziploc bag with creamer and sugar packets. It didn't take much space in the suitcase, and I was prepared to leave the cheap coffeemaker behind if I ran out of room on the way home.
It was HEAVEN to be able to reach over and flip the coffeemaker on in the mornings, and wake up to the aroma of good coffee.
I bought nice coffee mugs at the parks (I have tons of these at home- my favorite souvenirs!) and we were all set.
I just wouldn't count on the resort supplying the coffee maker and accessories if it's not a standard part of their room setup.
