Ohmygosh!
I am SO chuffed that we're finally getting weather! The most exciting thing for me is swimming in the sea and in ponds - I've been pond-ering (hah) ways to make swimming pools look 'natural' and blend in with scenery, so this is awesome news!
Really, really looking forward to this... my gf agreed to help me upgrade my graphics card and my OS (she's v clever when it comes to things like that), so I might just do that before installing this and Supernatural though... looks like it's going to put a bit of strain on the system as it stands. I also have to buy all my own sims stuff, but this will definitely be worth it... although it is only a month before Christmas... Hmmm, we shall see.
Edited to add - oh, and there are RAINBOWS! This makes me so happy
That whole trailer looks utterly awesome, this has the potential to be my favourite expansion yet!
Oh, and I really don't mind about the vacation worlds not having seasons, I think Egypt would look very odd in snow