I would say both the streams of Pop and Porn are endless
but where with Porn it seems easy to move on from one girl to the next
with Pop it seems users are more inclined to get stuck/fall in love with their object(s) of attention.
As a result what is really an endless stream of Pop may seem like a terribly finite one to certain fans like myself.
When I'm deprived of my 'fix' I feel like a lowly parishioner praying in my fandom for my Idols to enter my life.