They still lose hands down in the performance/dollar metric. Also, CPU performance is not in the same ballpark. Similarly marked parts (eg. desktop i7 vs laptop i7) have widly different performance characteristics, mostly due to thermal budgets.

But you CAN game in a laptop that doesn't require a backpack-sized power adapter now, and that's great. They're just not the most economical choice.

I haven't even got into the upgrade angle.