I assume that you iPad has a 3G radio in it. Regardless, I'd take my chances and assume you'll have ample Wifi support. Vegas isn't exactly a backwater. Check ATT/Verizon and see where their hotspots are out there. Call the Nugget and ask them if they have wifi. Seems like most all 3 star and above hotels have it anymore. Unless it is completely mission critical, I would say don't bother adding data for a single trip. Heck, I'd also say don't take the iPad at all! This is Vegas! Hit the strip, catch a show, don't bother being connected. Your iPhone should be able to cover your comm needs. But, if it is work related, let them pay for a month of data. 😉