Yeah a cheap LED light bar sounds nice to get since most are around the 1k for a good quality lens and LED's. But it would probably be better off just saying the extra money and getting a better brand light from like BlackBoxLogistics, BullDog Lighting or Rigid.
If you want a good bar for somewhat cheap look at BlackBox. They have a 50" for $500 and they always have sales. They also have some other good options.