Hehe, my TDS 340 was indeed a lucky find. That said, the 2235A is very respectable scope, and I would say you did well to get it for that price. I'm glad to hear you were able to find a scope to use, and I expect you will get good use out of it. That's some rough luck on the bad capacitor, but it sounds like you did a nice job fixing it up.
As you say, I imagine that eventually you will want to look for a DSO when the need arises, probably either a modern Siglent, Rigol, etc. or a vintage DSO such as the previously discussed Tek or HP scopes. For now, I would recommend spending some time familiarizing yourself with your 2235A. Even now that I have my own DSO, I still use my analog Hitachi scope quite a bit, especially when I need to use a scope in X-Y mode. After working with an analog scope for a while, you may have a more concrete list of criteria for what specs or features you will want for a DSO.