re: Is a brand new Gibson Les Paul Standard an acceptable 1st guitar for a newbie?

No. Sound great, sure but heavy. Most guitars are more comfortable and easier to play. The headstocks are so easy to break as well. Mine got bumped off the stand and cracked. Hip replacement would be in store if it was my everyday guitar and I'm not a small guy. It's a worker you keep around because you enjoy their personality and are well liked but you have some work horses out there that are better for the bottom line.