The Drum Tower has been almost demolished in recent years, so it’s best not to go there. There is only one store now! And things are still expensive
Go to SOSHOW, which is a relatively large animation distribution center in Beijing. There is a BANDAI store on the 6th floor and everything is cheaper than the small stores
The route is: Take 2 Get off the subway at Chongwenmen, exit from Exit C and walk south