If you decide you like it and continue to use it keep an eye out near the end of the season in the fall at Wal-Mart because sometimes they will put theirs on clearance when they are trying to get rid of the summer garden stuff. I have seen the liquid form of this on clearance at Lowes in the fall.
If your Lowes carries both size containers, 4 lbs and 10 lbs, keep in mind that the 10 lb comes out cheaper than buying two 4 lb containers. Here it's $25 for 4 lbs and $50 for the 10 lbs so basically you are getting 2 lbs free by buying the bigger container.
When I used it in my first few beds I kind of eyeballed it and sprinkled it down with my hand ( YES I was wearing a glove) and you will use way more than you need to doing it that way. I used a measuring spoon with the rest of my beds and the product went a lot farther.
I have searched for other products with the Imidacloprid in bigger, professional sizes but everything else has to be applied every 6 weeks or 8 weeks. I wish Bayer would come out with a professional size in this because I like that it lasts a year.