Yes, anywhere there is a dense concentration of hotels you will find lots of tourists. Siam has the fancy shopping, Nana has the nightlife of course, Pratunam is a popular night market with Indian and other Asian tourists, while the market area directly west of Ratchathewi BTS stop is somewhat less visited by foreigners but just as bustling after dark. There are also day markets which close around 4 PM. Vendors sell juice and food for far less than you would pay at a touristy night market.This king suite near Chit Lom cost me $18/night, and was on par with a $80/night room in the USA.