Wii emulated on Laptop or Wii on Lapop screen

[Synonim]

Hello guys, my laptop is MSI GX740

With Intel Core i5-430M
VGA ATI Radeon HD5870 1GB DDR5
4GB Ram
17" Screen

And i am wondering if games emulated will be with nice speed, since i only have the laptop 17" in my flat i currently have two options :

-Buy Wii and play on Laptop screen via USB Tv Tuner Video In
-Play Games on Emulator

So guys what do you think would be better solution to do?
Pros and Cons Please.

And second question, if 2 Wii motes are hooked up via Bluetooth is there no Delay in movment for example Wii Sports Tenis will be fast responding to moves or i will suffer movement lags?

Thanks for answers.