Most of my HF operation is QRP, and there is a certain amount thrill to doing it with the low power. For example, I recently handed out Minnesota QSO's to Russian hams working on their Triple Play Award. Since my only digital rig is my FT-817, that's what I used. I told them after the QSO was over (so they didn't give up) that I was running 5 watts, and they were blown away. So it is kind of fun occasionally pushing the envelope and seeing what you can do with low power. But for me, the main reason I run QRP is so that I can use portable equipment and run it on battery power. I didn't buy the FT-817 because it was low powered. I bought it because it was small, and would run on small batteries. If you want the portability, then definitely get a QRP rig, because it's a lot of fun to be able to take a complete station with you. But if that's not a priority, then I would say get a rig with more power. You can always turn down the power if you want to give QRP a try.