I'm a bit obsessive about guitar weights, and I'd say 8 pounds is better than "not bad" for a non-chambered LP! Loads of LPs (and similar, like Yamaha SGs) are 9, 10, even 11 pounds.
A typical newer Fender American Standard Strat or Tele is nudging the 8 pound mark, I had a Tele a few years ago which was nearly 9.5.