The cooler is not a bad option, mainly b/c cheaper, though it doesn't have some of the fanciness of the products you're looking at there.
One thing you will very definitely need with batches of 10+ gallons is a wort chiller. The 25' ones will run you $35-50, the 50' ones will be around $100, I guess? But yeah, as far as I know, you will certainly want one of those when trying to chill large volumes of hot wort.
Good luck! Let us know what you choose.