Well honestly... if you have a multi bulb set up and keep a flat canopy (like a scrog) it doesn't do that bad nor is it that expensive. I like them just because you can have the lights right on top of them...like you can have them anywhere from 3 to 6 inches away from all the tops.
Yoi would just have to shop around on Amazon and see what works best for you and your budget.
Personally I just dont see the need for me to drop a few grand on lights when primarily I grow outdoors and get several pounds a plant. I just did the indoor this yr because I'm breeding some strains that I hope will do well in my climate.