Yes - get both!!
That being said - here are 2 big questions:
1 - How many finished tops do you make?
2 - Do you have children? Do you make gifts?
If you make lots of pieced tops and you like to do that then the Longarm is what you want. If you have children, you will get a lot of use out of the Embroidery machine. 10.5 is not huge - but it is far better than 6 (or 7). Also quick gifts are a breeze with an Embroidery machine. That being said - I would look for a used HV D1(without the usb upgrade!!), a used Designer SE, a used Pfaff 2170 or even a used Babylock Embroidery before I dropped 5k on a new HV. Their quality has dropped significantly since they moved their assembly to China.
I have both types of machines (both purchased used) - they serve different purposes. It all depends on what you want to do. Best of luck with the decision!!