With that kind of record, it has to be something to do with your use. Still anecdotal, but I've never had anything but HDD and inverter failures in my laptops (mostly Apple) across multiple models, years, and beatings.
But if laptops failed at your rate across all users, they'd have to cost three times as much to cover warranty repairs.
I've NEVER had a harddrive failure on any system, ever. On laptops, the first thing to go seems to
always be either the keyboard, the fan, or the touchpad in that order. On non-laptops it has always
been the power supply, the motherboard, or a fan in that order. I usually replace a system at the 5-7
year mark and I've been very lucky that I've never lost a harddrive which would obviously be the
hardest to replace as I don't really take many backups.