It really comes down to expense. I run a hot pepper business so I have two 4-ft fluorescent fixtures going in one room, a Mars Hydro sp3000 in the auto tent and a viper Spectra xs1500 pro in the photo tent, which I will be adding one more to.
The HPS light sounds like the only viable solution to keep electric costs down. It's crazy expensive here on Long Island.
The summer months are obviously ideal for growing indoors, I consider the winter my off-season where I can experiment. Whatever grows is a win for me.
It seems I spent most of my life researching LED lights, I like coco for cannabis recommendations. I know nothing about HPS so I'll need to read up a bit. Again, an expense consideration for next spring.