PC laptops have often had better keyboards than Macs (e.g. Thinkpads), so I and many others would disagree with you there.

The trackpad situation is a legitimate gripe, but this is hopefully improving with Microsofts Precision Trackpad standard.

The big advantage of stepping outside the Apple garden into the wider world is choice. You have choices like matte screens, 17" screens, up to 64GB RAM, hotswap batteries, upgradable components, ARM chips, Xeon chips etc etc

Even the current Macbook Pros (high spec Airs) have had equivalents available in the PC world for a while, e.g the X1 Carbon, which is being upgraded to KabyLake soon, while Apple have only just released their Skylake machines.