Remember that you get what you pay for. I had a very cheap VPS ($1.61 per month) for a few months until it went down. I got an email 2 days later saying that the hosting company was being kicked out of their data center because one of their clients had been the victim of a DDoS attack, and they were in the process of overnight shipping all of their servers across the country to a new data center. Luckily I was just hosting some non-critical personal projects, so I wasn't adversely affected. In the end they were down for 5 days, which under the circumstances is actually pretty impressive.