Well I went last year as well and had to take some trainers back because the quality was very poor. It wasn't a bag of pins, it was the case for storing them in that costs 32 Euros. And the staff made it very clear that they did not care. Apart from one assistant in one shop who seemed genuinely concerned, the rest seemed to think it was funny. Coming from the UK where consumers have rights, and generally companies, particularly ones with a huge turnover, care more about the continued customer than saving a few pounds over something that was their fault in the first place.
Added to this, the quality of many of the items would not pass trading standards. I have a film of the same keyring, mentioned above, being handled by a child and he pulled his hand away in pain because there was a sharp edge on the hinge pin.
From what I've seen in Disney Store UK, the quality is much better. We won't be returning to Disneyland in Paris for a long time now after the way we were treated by several of the staff.
I met a cast member from the UK and we were also discussing how appalled we were by the way the cast members trade pins. There are so many scrappers on the lanyards and if you accidentally trade for one because you don't get a good look at it, you are left with rubbish because they haven't bothered to check. And there were broken, scratched or otherwise damaged pins on the trading board. Also, it was very hit and miss if the board was coming, no one seemed to know whether it was or not and those that thought they knew, gave me times and places that were incorrect so I wasted a lot of time waiting and the one time after being told it was coming it did not.
All the evidence seems to suggest that in general the resort no longers cares about good service, just making money.