I'm an IT manager for a major medical company. We've had Toshiba, Dell and IBM (now Lenovo) used by our sales force. We refresh the laptops every three years. I have to say that out of all three brands, the IBM Thinkpads fared the best. The Toshiba's came back cracked, keyboards falling out, etc. etc. The Dells came back with parts dangling too. The Thinkpads were the only ones who took the abuse of a salesrep over 3 years and kept on trucking. Kudos to IBM, now Lenovo who acquired their PC division not too long ago. By the way, Lenovo was the subcontractor was previously building the Thinkpads for IBM. However, now they own them.
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Warning, I'm prone to sudden attacks of enthusiasm
In the garage
2008 Infiniti G37S Coupe (Traded)
2011 BMW X5 xDrive35i
2011 BMW X5 xDrive50i