I found these for sale at Wal-Mart, and I would recommend getting them there unless an online price changes and happens to out do the convenience of buying local.  For 24 bottles I paid about $30.<br /><br />Onward to the product review.<br /><br />So I have been using these off and on since our baby boy was born in the hospital, where they supplemented him using this product while his mothers breast milk came in.  Today almost a month later we are still using this product.<br /><br />I have had some mixed results with this product, causing my son to have some gas, reflux, spit-ups, and rare vomiting (although not exclusively Enfamil's fault), but for the most part he seems to keep this down and enjoy it.  It also seems to mix fairly friendly with his moms breast milk, so if my boy is really hungry I can confidently give him both and not cause issue.<br /><br />If you can get around the price, reason with yourself, because let me tell you how convenient this product really is: The product comes in a ready-to-go bottle, and all you have to do is attach a screw-on nipple.  This is perfect for when you are up at 3AM feeding your baby (when you are tired as hell) and you have no breast milk around, or when you're out and about and you just want to quickly feed your baby.<br /><br />I have had great success using this product with my son versus using another powdered make-it-yourself product, wherein my baby was much more pleased to drink and digest this product from the latter.<br /><br />The shelf life is pretty good because you can keep this bottle out at room temperature for an hour, and store it in the refrigerator for about 2 hours or so.  Honestly, that's great because it is often the case that your baby is going to drink the entire bottle or close to it when you start your feeding anyway.<br /><br />So although the price is not as cheap as some others... the convenience factor, paired with the amount per bottle for a feeding, really makes this product worth it.  This is the only formula product I buy my son at the moment, and it seems to be working quite well.