Back in the year I bought a cheap Lenovo laptop with Intel and NVIDIA Optimus gpu. It was not great but I am unable to say it was bad, it still runs fine, so it was a good choice. Even though the Linux support for Optimus enabled gpu was kind of bad it was still manageable. At the time I decided to use Bumblebee + bbswitch (to disable the card), it worked fine. There was a bit of drawback on CPU but it worked kind of nicely, I could run things on NVIDIA with simple command without closing current X.