All LEDs will continue to evolve as time goes, less than a year ago, people didn't think LEDs could sustain a reef. Ecotech will keep upgrading their models, us first gens paid a premium for them, 2nd gen offers more for less $$$. Jump in when you can, there will be more options available when you do, and 6 months after that, prices will have dropped again and there will be even better products available.
4 bulbs a year will cost close to $160-200 to replace- there's your fixture
but you have to live within your budget, once you r done school, you'll be able to do more - like a bigger set up