Don't know much about snowdrops, but have some knowledge of daffodils through the chap who's fields are pictured in my avatar. He has "custody" of some new cultivars from the US that he is trialling in the UK to assess their performance and ability to bulk up in UK conditions. This is part of the viability & producability test for new varieties before they are launched. The ones he has ( and his own new breeds) are worth hundreds per bulbs as there are so few, they have taken years to get to where they are, and they have a potential commercial associated value in the future.
I am so lucky to be able to wander round his old stock fields at this time of year, but I have to say, for me there are so many wonderful daffs out there as it is, I can't see why we need any more.
Cheers