There's significant advantages to having a 3" thick laptop, in particular is you get 1mm (or more) of key travel; modern Thinkpads have 0.7mm travel due to thei

There's significant advantages to having a 3" thick laptop, in particular is you get 1mm (or more) of key travel; modern Thinkpads have 0.7mm travel due to their slim design. The other is air flow, you can push a substantial amount of cooling air through the case for the same amount fan noise.