Eskadron is every day out here, and no where near that expensive!!
Eskadron Gamaschen - Reitzubehör, Reitbekleidung, Reitsportartikel - Reitsport Shop Horsestar GmbH
This is one of the websites I use.. however I quite like the PFIFF range, lasted FOREVER on my dad's mare, still got them, we bought them 7yrs ago!!
Pferd, Gamaschen/Streichkappen, Gamaschen - Reitsport-Exclusiv
The AWAtech are also very very good. The shop for the above website does Eskadron in house and the boots are about €30!!