I do think that this years event is better than last years. Last year you had to pay ridiculous prices to participate in the event. This year everybody gets 18 free chances to get prizes. It's almost like a second advent calendar. The only one thing that I don't like is that last year there was at least a limit on the amount of prizes you could buy, but this year they are letting the nugget spenders go wild (this is irrelevant however due to the UP shop being always available). This also has its benefits since the more set pieces there are in the world, the less valuable they become.
Due to the amount of people playing and the fact that you can get unlimited chances due to nuggets and bonds, I think that the set items will be not that rare by the end of the event. My predictions are that the uncommon set pieces will cost between 10k to 20k, the rare set pieces will cost from 35k to 55k, and the very rare will probably be around 150k to 250k.