if you want cheap trays just make them from totes or concrete mixing trays, the pre fabbed trays are pricey but in the long run are a great investment, they have great drainage and are very durable, my botanicare 2x4 trays where 60-80 bucks i believe and are still running great. i have used everything from mixing trays to the current trays i have and would buy the trays i have now over and over again, just worth it to me.