I'm kind of late to this thread but wanted to respond because I use and love Smartpaks.
I have 4 horses and they get (depending on the horse):
SmartVite EZ Keeper Grass
SmartVite EZ Keeper Alfalfa
I switched to Smartpak supplements versus some of the big name brands because I use a program called FeedXL to analyze my horse's diets and was pretty surprised to find out that many of the big name brand supplements out there supply very high quantities of certain nutrients and not enough of others. Even the premium expensive supplements are often very unbalanced. You think you're getting a "good balanced supplement" but still end up deficient in key areas like B vitamins, copper, iodine, folic acid, etc. The key nutritients such as A, D, E are generally supplied in great quantities but other areas are neglected.
I found I was able to get a really great balanced profile using the SmartVite vitamin/mineral supplements. Equine nutrition is very important to me and I spend hours comparing labels and charts looking for the most complete, balanced, and economical Honestly I haven't found anything better than the SmartVite supplements.
If your horse is getting a good premium diet, chances are good that you can 1/2 the amount of vit/min supplement you're feeding. FeedXL is a great tool for figuring out what your horse is getting and what they need.
Yes the $7.95 shipping is a bummer, but there generally are free shipping coupons available online. I haven't paid shipping the last 3 months.
Yes, the Smartpaks are made with 100% recycled material, and they are recyclable. I have a bin in the feed room where I throw them then dump them in the recycle container once a month for pickup. It works fine. A word about costs of Smartpaks vs. Buckets:
Even though "technically" the cost of most Smartpaks vs. buckets is basically the same, I found the Smartpaks to actually cost me more money. The reason is because when you feed supplements from buckets it is easy to forget to scoop something into the ration - especially when you have multiple horses getting multiple supplements. You're scooping a vitamin/mineral, the MSM, the Mare Magic...before you know it, you're hanging the feed bucket up thinking "Did I put the MSM in her bucket?"
Even skipping a day a week can really stretch a bucket out and make it last longer. When you get Smartpaks, it's right there - just tear off the top and dump it in. So there is no "stretching" it unless you just neglect to give it at all.
I used to buy buckets and say the bucket lasts one horse 56 days. If I forget to put it in 7 times during that 56 day period, that extends the bucket life by a week. With Smartpaks that never happens because the drawers are there, you open the drawers, grab the packet for each horse, and you never forget anything.
So in a sense, it is more expensive because the horse eats the supplement EVERY single day instead of ocassionally getting skipped. If that makes sense. LOL