If you're referring to the using Adobe's Creative Cloud software, then yes, to my knowledge you have to pay a subscription fee each year, and then you get access to any program you want to use from their suite. Do you have a link to the 'deal' you're referring to?
I see.. I was reading the terms of the student/teacher edition from educationsoftware.com( i think it is ) and it said you only get one licence per year.. so thought the student/teacher version might be like the CC one.
Oh! and I did not see a deal... I was saying like...... What's the deal with Lightroom software???