Vince & Mike - I did not purchase the self-watering bucket. I made some from 5 gallons WalMart buckets. I think they are about $2.48 per buckets. Make sure you buy the blue ones if you buy from Walmart. The white ones are more expensive but made from thinner plastic. Or you can get some orange 5 gal buckets from Home Depot for almost the same price. Check this youtube on how to make one.
I didn't use the lids (too expensive for what it is and does not work well for fig trees). I covered it with thick black trash bag tied with 32" (if I remember correctly) bungee cords.