unless you had hundreds of drives or are a statistical miracle
even if you have been keeping your drives for WAY to long, theres still no way you have seen 10 HDD failures
hard drives dont have a failure rate anywhere near that high, YOU have been doing something wrong, either not cooling them properly, maybe you though RAID was a good idea, maybe you dropped them IDK
your the sky is falling crap is kind of dumb, and as for 2 TB being a "chunk of change" i dont know what hard drives your buying, but they better be diamond encrusted for only 2 TB to be a "chunk of change" otherwise your not actually in the enthusiast market which makes me even more skeptical of your failures
oh and as for "hard drives not lasting as long as they used to"
k you go buy 150 old 5gb HDDs, and ill go buy 1 new age 750gb hdd, lets see who loses data first
new hdds are much more reliable then the old when you think about it from the proper perspective