From amazon.de:

Das Fließende Licht der Gottheit by Mechthild von Magdeburg (76 EUR)
Das Nibelungenlied und die Klage (148 EUR)
Prosalancelot I-V - 3 in 5 Bänden (komplett) (248 EUR)
Die Büchse der Pandora: Geschichte des Ersten Weltkriegs, by Jörn Leonard (38 EUR)

From amazon.fr:

Libertins du XVIIe siècle, tome 1 (63.50 EUR)
Libertins du XVIIe siècle, tome 2 (71 EUR)
Romanciers libertins du XVIIIe siècle, tome I (60.50 EUR)
Romanciers libertins du XVIIIe siècle, tome II (66 EUR)
Anthologie by Eustache Deschamps (14.60 EUR)

That's 785.60 euro in total.

Then there was a small Folio Society order as they just issued new books:

The World of Late Antiquity by Peter Brown ($59.95)
Paris in the Middle Ages by Simone Roux ($67.95)
Richard III: England's Black Legend by Desmond Seward ($59.95)

Of course, most months aren't this busy. After September, when 5 books on preorder come out, I don't see any purchases through January.