Nice setup, Elijah1.
To the OP, QRO is definitely a lot of fun. No way I'd want to go back to 100 watts or (gasp) QRP, especially on the low bands. I've had so many QSOs where I was running 100 watts (too lazy to turn the amp on) and the DX CQ'd right in my face. I'd send my call and not even get a "?" in return. Then I'd fire up the amp and get through on the first call. It's that big a difference.
Of course, in terms of improving your TX/RX capabilities you want to get the low hanging fruit first. Often times, that will be your antenna system. Put up the most efficient antenna you can for the bands you want to work. Reduce losses in your ground system and your transmission lines. Upgrading your coax to LMR-400 (or switching to ladder line) and/or adding some radials to your vertical antenna is a pretty cheap way to pick up a dB or two.
After you've done all that, then I'd start thinking about QRO. And it doesn't have to be that expensive. You can get a used AL-811H on eBay for $600 any day of the week. Add $100 for a wattmeter and $50 for a dummy load. $300 for a QRO tuner if you need one.
The AL-811H is the route I went. If I had it to do over, I might have spent a little more and got an AL-80B (1KW output, one tube instead of four). Or maybe even a few more bucks and picked up a used Alpha. In fact, I still might pick up an Alpha one of these days. :)
Personally, I'd go with a tube amp over SS. Initial cost is lower, they're easier to work on, they'll tolerate larger mismatches, and tuning up is really no big deal once you get used to it.