for 30-40 euro/day, you can stay in nice hostels, buy road food from the markets (fruit, fresh baguettes, cheeze, cold cuts, so on), eat a imbiss-type restaurant dinner, and all the cappuccino you can drink. it depends heavily on your skills and your standards. i wouldn't call "hotels" and four-star dining bike touring, but i suppose there are different schools of thought on this. in 27 days, i stayed in one hotel, one pension, and lots of hostels. it's not like you'll be hanging out in the hotel when there's so much to see- why pay so much for a few hours sleep and a shower when you get the same from a hostel?