If you read a bunch of addition stuff, you'll notice a common theme with addicts is they tell themselves they deserve it, there's justification, I work hard, I deserve it, I am a perfect person, I am allowed a little vice, it's better than so and so.
I find the hunt for SPs is time consuming, and if you measure the amount of time it's huge, between browsing, research, booking, shower/prep, going, cumming*least amount of time*, going back to wherever. I guess it's lots less if you're not too picky, but for me I need to be attracted.
For me it's cutting into work time, or personal life with my SO or other activities.
If it was easy like, goto a website, browse, see reviews beside photo, see schedule, prebook/prepay, and you're in, hit the showers, then meet the girl, fun and out. That would superb. Cutting it down to min time expended. Sadly Cons about to ruin the possibility of this happening for a long time.
Anyways, the reality is based on the frequency many here are describing, between forums, research, time in transit, financial cost, health risk. vs mostly disappointment with occasional great fun. Is poor risk reward ratio, and pretty unhealthy.
I'm somewhat disenchanted with sp's at the moment, vast majority for me is a not so stellar experience, with some gems.. who don't stick around or disappear from the biz.. resulting in hunting again.