Benefits of Fluorescence DNA sequencing:

Fluorescent DNA sequencing eliminates the use of radioactive isotopes for DNA labelling and thus reduces the amount of radioactive waste.

Due to its automation, it is also time saving procedure because here we don't need to generate autoradiograph or any associated tasks which are required to work with radioactive material as radiation survey, inventory or regarding its disposal documentation work.

And also it provides more reliable results than Sanger manual DNA sequencing.

Automated DNA Sequencers which works on Fluorescent labelling basis are more efficient in working as they can sequence more than 350 samples in a single run and 24 runs in a day.

Interesting article to read

http://www.nytimes.com/2011/12/01/business/dna-sequencing-caught-in-deluge-of-data.html