>>2208384Yes, because:
>Allows me to camp in shitty terrain (on rock, gravel, sticks, light brush)>Prevents my tent body floor getting wet on multi day trips>Mandatory for winter trips>$15 piece of tyvek saves my $300 tentThe flexibility in campsite selection it opens up is alone well worth the 6oz weight cost
>Are they necessary if it's not raining and if I make sure to check for rocks underneath first?yeah they're not necessary, but you do have to be more picky with site selection. It's your call whether the tradeoff is worth it. For me, carrying 6oz is well worth not needing to stumble around an extra hour looking for a good spot if i'm bushwhacking in an area without established campsites.