If I'm honest then yes I would probably have gone out and bought some glofish just because they're different and look pretty. However, having read an article in Practicle Fishkeeping I'm not so sure about it now, plus the sale of Glofish is banned in the UK.
It was also apparently reported in the media that these fish are sterile yet a man has been successful in crossing his GloFish with other aquarium strains of the Zebra danio (Crossing with short-fin spotted, long-fin gold, short-fin zebra, long-fin zebra, short-fin gold, and long-fin blue have all produced red and green glowing offspring)
Here's the link to the article if anyones interested (hope it works)
http://www.practicalfishkeeping.co.uk/pfk/pages/show_article.php?article_id=119
It was also apparently reported in the media that these fish are sterile yet a man has been successful in crossing his GloFish with other aquarium strains of the Zebra danio (Crossing with short-fin spotted, long-fin gold, short-fin zebra, long-fin zebra, short-fin gold, and long-fin blue have all produced red and green glowing offspring)
Here's the link to the article if anyones interested (hope it works)
http://www.practicalfishkeeping.co.uk/pfk/pages/show_article.php?article_id=119