I hate to say this but my sale on animals is $0.99 and my gold box is 15 gems.
I looked at the frozen ship and trellace and they are the same as yours was. Just looks like the current event is what is different.
I wonder if it has to do with the number of gems people have or spend. I don't spend my gems very often and I don't buy with real money. I wonder if they are trying to entice those who aren't buying much.
It is now saying the animals are $.99 for me too. I swear earlier it was $1.99 because I remember doing the math to figure out how much that would save me over buying gems from the shop.
But the golden box is still 35 gems. I wouldn't buy the golden box if it was changed to 15 gems unless you had a chance to win more than 15 gems or some rare special item you can't get any where else (which it doesn't sound like it does) ... so I guess it is kind of pointless to complain.