ComingUp

So Im looking for a cheap usb wifi card and my first choice is the ALFA USB WiFi AWUS036NEH but I have to order it online since there are no shops that sell it where I live so I have to have it shipped and that costs me more 10/15 thus doubling the price. But I've found a TP-Link TL-WN722N USB WIFI that costs about the same and it seems to do promiscuous mode. Anyway what I would like to ask is there anything that one does that the other doesn't?