P.S. the high end coax and ethernet cable costs very little money. What costs is the electrician, who charges (long ago) $50 just to attach the wires coming out of the wall to the socket.

Me, I watched the electrician at work, and the cable guy working at my previous house. I noted the tools they used, and bought them. A Milwaukee right angle drill puts the holes in the studs. I bought the Telewire Supply coax strippers and crimpers, and the ethernet socket tools. With that, you can do a pro job which will last and costs very little.

I learned back in college that using professional electrical/electronic tools, like a soldering iron, makes a huge difference.