Amazingly THE place to go if you want to see lots of blond eastern euros and cheaply is Germany. Look up FKK.
I have never been to a brothel which has a quantity discount, there its a business model. I went to one that was 50 for 1, 75 for 2, 90 for 3 and 110 for 4 (euro). I took it as a challenge and got the 4. Sure it isn't a long time (20 mins is a session) but you are have 4 of them with 4 different girls (or multiple with one), and watch tv and eat while "resting".
The area around Cologne has the largest concentration of them close together.