I'm pretty sure the ones in Crieff are marked as seconds. There is a whole display stand of them. I will check next time I'm there.
There are also old, limited editions for sale - the ones which were still left over when Caithness was taken over. It's just old stock, I presume that's what you saw. They do have old stock and bring stuff out in dribs and drabs and sell them along with all the new things.
They still have two of the ginormous Toffolo things - "weights" which must be about 7" in "diameter" flat topped and faceted everywhere, full of flowery things. I first saw one of those at the Scottish Glass Society Exhibition in 2000.