You can compare it with a love relationship. You can choose a real relationship (concrete) or a virtual relationship (abstract)
Most people prefer real connection, with all the ups and downs. Not many choose virtual (platonic) relationships without sex, kissing, touching etc
I think a better way to talk about these things is at the gross, subtle, and causal levels. Sex and kissing is the gross level, which would be comparable to having an idol you can see and place offerings before. The subtle level is the "sensed", or the "abstract". That when experienced is considered considerably deeper and fuller than the gross level. And then there is the causal level where the gross and the subtle are transcended into a liberated unity consciousness. This is the deepest, the fullest, and the highest of all.
So regarding sex and touchings and stuff, this is all good and fine and wonderful when you're in your 20's. But most couples find that as they grow and mature, if that alone is all there is to the relationship, it's not sufficient to carry you through.
That's like the difference between concrete God connection and abstract God (no connection)
@stvdvRF
Think of the gross, subtle and causal stages of meditation. So the "abstract God", is more the subtle level. The "causal God" is the nature of Reality itself as undifferentiated consciousness, or Atman. The gross level God, is the murti, something the mind can focus on, which hopefully opens one to the subtle, and then to the causal as they mature spiritually.
Make sense? Same with sex. That's the handshake at the door, but not the depths of love itself. Eventually, one doesn't need the concrete and the literal. One can at some point live without sex, and be more than contented without it, to continue your analogy. Why settle and depend on the gross level?