Oooooh, I'm loving this thread! Thank you for starting it, ree-Xi ...
I purchased Rosetta Stone's
Latin American Spanish software from Ebay about two years ago. I got all Levels 1 through 5 in a set, for only a little over $200. (I was lucky, I know ...

) And I bought the headset with mic separately for $25 (also from Ebay). Anyway ...
I took four years of French (two years in high school, and two years in college). Because I sing (and study) opera, which requires me to have a general understanding of the German, French, Italian and Latin languages, it occured to me that Spanish was one language I'd had NO experience with whatsoever.
So, needless to say, I enjoyed the Rosetta Stone software right away. However, I only used the program for about a month. So, yes, ... diligent, motivated consistency is imminent when studying any language in order to, at least, be able to "get by". As some have already said here, I had no one to practice with either, which would've made motivation all the more difficult.
Let us know how you make out in your research on price, ree-Xi. I'm considering purchasing another set for either French or Italian. But I must have the same deal I had with the Latin American Spanish one first.