Please tell me, inexpensive hotels in Tokyo?
Hotel prices can change, sometimes quite significantly. A room can cost 15,000 yen, the same room can cost 5,000 yen tomorrow, and a week later it can be 20,000 yen per day. There have been times when I booked one hotel, and a month later booked a neighboring one for half the price.
In general, relatively inexpensive 2-3 star hotels are chain business hotels, such as APA Hotel, Sotetsu Fresa, and similar ones.