Secure Your TV with VESA 300x300 wall mounts

I want to buy a full motion wall mount, I was recommended to the Sanus $349 for my 77” LG C9. Is it really necessary to spend that much on a mount?

TV Wall Mount for 32-55 Inch, Tilt, Up to 110 lbs,VESA 100 -400mm, SatMaximum

Parts Express Universal TV Mount Adapter Brackets 100 to 300 x 300, 200 x 200, 300 x 100, or 200 x 100

StarTech.com TV Wall Mount for up to 80 VESA Mount Displays - Low Profile Full Motion TV Mount - Heavy Duty Adjustable Articulating Arm - Adjustable TV wall mount bracket for large

Secure Your TV with VESA 300x300 wall mounts

StarTech.com Secure Tablet Stand, SECTBLTPOS2

PROVANTAGE: StarTech.com FLATPNLWALL Flat Screen TV Wall Mount - Tilting - for 32 to 75 TVs - Steel - VESA TV Mount

This fixed TV wall mount is designed for 32'' large wood stud spacing, which is perfect for off-center wood stud and TV centering. A slim 1.1'' low profile takes up less space and creates a sleek look on the wall. If you want to hang up your TV but don't want to swivel or tilt it, MD2361-32 is perfect for you.

Mounting Dream MD2361-32 Ultra Slim TV Wall Mount Bracket for Most of 42-70 inch

VESA 300x300 wall TV mounts & brackets

Master Mounts Full-Motion Locking TV Wall Mount

VESA 300x300 wall TV mounts & brackets