As a former Taylorian, RM1k for a room bigger than the hostel is do-able provided that not too many units are built. Many international students I know and even locals not from Greater KL choose to live in the hostel even though life at night is boring and it's very expensive for a VERY SMALL room although the security is top notch. Taylor's also increases the rental very often, twice a year if I recall. DK city's supply of apartments in the area will NOT BE matched by demand as Taylor's international student population is small( they are selective) unless they can really make the place nice with more F&B outlets. Lastly, not many Taylorians are rich, only some programs in Lakeside have a high percentage of UHNW/VIPs kids. Do your research on the student population in Lakeside and you will see where I am coming from.

There are about 11-12k students now. Taylor's can't increase the intake without building more classes. Classes in Taylor's are 90-100% occupied especially the auditoriums (they run classes in the auditoriums late into the day).
Moreover, the jam leaving Taylor's is horrible. DK city needs work something out in the big traffic light near Sunway medical centre. The road infront of DK city is 1 lane.