I'm using an old T520 as my main machine for the similar reasons - it's a rock solid machine. Yes, I gave it more memory at one point, and I replaced the HDD wi

I'm using an old T520 as my main machine for the similar reasons - it's a rock solid machine. Yes, I gave it more memory at one point, and I replaced the HDD with an SSD. No, nothing new comes close. I only ever regret the decision when I am travelling through airports, when I see people effortlessly slide out their thin, light laptops while I heave around a machine of yesteryear, large and ominous-looking (I swear, the screening agent scrutinises the Thinkpad longer than he does look at your MBP), and heavy.