Yeah, I'm from the Czech Republic, some kind of a southern brother to you and I definitely know what you are speaking about.

I did my trip to London last year and I paid only for what I needed: bus (cheaper than plane), ticket and minimum of food. I have to admit that I had a third row ticket - but I wouldn't do such trip there if I had a worse ticket.
Bus: 2100CZK = 73,2GBP = 86,8EUR
Ticket: 113GBP = 134EUR
Food ? (I had my own from home) + Transportation: Max 10GBP = 11,9EUR
Total: 232,7EUR (5631CZK)
I'm a student and I have a part time job at the Czech and Slovak central office of Tesco Stores, my wage is 80CZK/hour = 3,3EUR and I can't (legally) work more than 20hours/weak so it is 80hours = 264EUR but this never really happens because I have to go to school as well.

Being a student makes it different but it really bothers me that I can't go to as many shows as I'd like. You guys from USA, UK, Germany etc are very lucky to live in economically most powerfull coutries and the band plays a lot shows there. We are weak and we have to travel..