Is that a surprise??
The number of Viagra recipients has a hundred (or more) times more than of the recipients of transgender care. Talk about your FAKE NEWS??
What would be an accurate comparison, if you want to reference Viagra costs, is the cost PER PERSON of Viagra versus transgender specific care. 

I've never served in the military so I got no strong opinion on trans-gendered folk in the military. Seems like if they want to serve, let them unless it is detrimental to the success of the military mission.