According to me its worth. Why the Indian students always give the first preference to IIT, simple reason is that STATUS even same degree you can get from other govt. engineering colleges also. So BITS is an institute which has started in 1964 and IIT delhi started in 1961 so its equal time establishment of top 5 IITs.
Regarding BITS Dubai, it has started in 2000 in world top city Dubai and resources and links provided by this institute is really awesome. Global Alumni meet has been conducted at Dubai campus where all BITS alumnus who are in top position in their field attended and given success mantra.
Before joining the institute you might have dilemma whether I will success or not after finishing the course , so this type of surety no one can give.