Studio Upgrade desperately needed

Welp, the time has come. I have been using a set of small monitors on my DJ booth and it's been working great but after a power surge, they now no longer work (Insignia HBTSS116). It's now time to upgrade and very soon. I'm trying to see where I want to take things. I currently play events with a 15" PA and a sub and in my home studio I always use all three to practice how I play.

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I like the portability of the small monitors and they work great, given that quality is less what I need and more just to hear what I'm doing. I know many people recommend PA speakers. I'm currently tied. I could go low-middle range but still an upgrade on the small monitors and grab the Pioneer D50s, but I've been considering getting a small PA as a monitor and seeing how it goes. Very low end, less than $300. I don't know which to pull the trigger on. What does everyone here think?