Interesting that folks seem to be in that once every 2 to the 3 months frequency, which is exactly the same foe me. I usually session for 3 or 4 hours at a time and that seems to scratch my itch for 3 months or so, at which time I start to plan my next session. Guilt and money doesn't factor into it, it is more a matter of feeding that need to submit when I start to feel in]t growing beyond something I can live without.