Most probably fake, the background is v3 but v3 clear with clear plastic.
Put a battery on and look at the egg i'll bet you'll get a v5 egg.
after you put on the battery and you get v3 egg, so it's original.
Most of my tamas were bought from YJ.
As for which provide better service, i would say they are similar.
Highest price you want to bid > shipping fee to proxy > commission > handling fee + shipping to you > paypal or credit card fee
Just a note though, if you're interested to...
this is a gallery of my tamagotchi collection, which i'm about to let go. Feel free to look around, ask question or make offer.
photobucket gallery
I actually have new Yuki Penguin and Raku Raku Dino too =)