Yeah well I think its hard to compare all the 737 fleet to the A320 fleet, theres a lot of old clapped out 73's around, same as comparing a 737-200 to a 737NG pretty hard to. Unfortunately with the exponential increase in flying going on in Asia and the boom in LCC's these will become common events. I read somewhere recently that in 10 years statistically there will be an event like this every 2 days or so, taking into account the forecast massive growth in air travel...