I dont spray tan. I just use the regular tanning booth and mostly during only the winter months. Like you said spray tanning only lasts a few days, but using the booths lasts for quite awhile, especially if your consistent. I am already naturally tan, but a couple of sessions gives me a nicer hue. And tanning does highlight the muscles more, and I love the first few days after tanning and hit the gym, everything looks nicer.