Its been 4 years but the guest house situation is nothing like advertised when I was there. If yours staying in Banglampoo (Khoasan Rd's neighborhood) places like this Sawadsee Inn were $16 a night. The only thing shared is the bathroom. You shouldn't have any trouble paying around that much for a private room because of the season.
Yeah I bought a one-way because I'm not sure how long I'm going to stay.. maybe 2 weeks, maybe 2 months.
yeah I figured a week is enough time in bangkok before I move on.
this is location of Hostel http://www.hostelbookers.com/hostels/thailand/bangkok/24241/map/
it's a 27hr flight though ffs. vancouver to tokyo to bangkok