In Germany one can change the ISP (only if the one you have is not the only one available though), but I have yet to see an ISP actually measuring the things th

In Germany one can change the ISP (only if the one you have is not the only one available though), but I have yet to see an ISP actually measuring the things that often are important for me: A reliable connection. No ping spikes, no drop in throughput. Constant quality. I can live with half the throughput, if only I had at least some guarantees about my connection's stability and latencies. I would gladly pay 5-10 euro more per month for such guarantees. So yeah, you can ISP hop, but might be hopping for a long time or in circles, until you get better than 3rd world country Internet connection.