And it seems I’m in the minority as well. I enjoy my workout during, but I think it’s mostly psychological. This is doing either weights or cardio. For weights, the pump is key, and addictive, which is not specifically psychological.
I think the psychological part has something to do with the accomplishment of getting the workout in, and looking forward to the feeling or “high” afterwards which is noticeable to me.
Also regular workouts make me feel better generally throughout the week, on a regular basis. Very noticeable if I stop for weeks at a time, and I miss it.