I guess that when you open the fridge, the content of the fridge is there whether the light is turned on or not.
Not like when you land back to your home and see everything turning and rezzing all around you, finally filling the void under your feet after 10-15 seconds.
Also I like to cam in others homes to enjoy and inspire their decors, as well as I like others people doing so with my home. Seeing only some of their furnitures/accessories suspended in the void because their homes are not rezzed is disappointing and ridiculous. I've checked some multiscenes on the ground too and that is so bad to see parcels around being empty or with just, here again, some furnitures/accessories suspended in the air. That ruins the immersion feeling. I'm on SL for immersion feeling, what about you ?
And finally, I also love, when I struggle in RL, to know that in my virtual world my little home is there, waiting for me.