Yeah so now when the bulb burns out instead of replacing a $1 bulb you get to replace a $300 fixture. That $1 you saved on energy over the life time of the bulb, turned into 299 and a whole ton of extra cost. Oh and dont tell me LED's dont burn out they do, although usually the LED will outlast its shitty controller. LED's have a output degradation curve which is pretty good but after about 2-3 years of continuous use they drop to ~60 % output. For that price you can get a lot of bulbs. Also those yellow lights you see are high wattage HPS bulbs. They are very efficient in energy use but im sure most of that is eaten by replacement/service costs. Its gotta be pretty pricy to pay someone to go up there and replace the bulbs every 6months/year and if you can double or triple that with LEDs thats probably worth the extra cost.