I'd love to add a couple more condenser mics to my arsenal, especially after "Yet Another Sarah" mentioned that it's possible to build them.
Ah, but! Since condenser mics require power — unlike the dynamic microphones I've been collecting and using up 'til now — I'd either have to buy a preamp for each of them, or buy a new mixing console with phantom power built in.
The first option would save money if I only bought one more condenser mic. If I bought two or more, though, it would be cheaper to buy an inexpensive six- or eight-channel powered board that could be used with all of my microphones (since all the dynamic mics I have in my personal collection, as well as the Consort's, are balanced and wouldn't be harmed by the phantom power signal).
Perhaps Karen's eBay powers would help me; although I'd be a bit cautious of buying used equipment without being able to see the shape it's in, I could certainly sell off a few of my dynamic mics to help offset the cost of a new mixer.
Damn my impulsive purchase, for starting me down this road! (Note to Karen: Yes, yes, I know. Get my crown replaced first. [Note to SCA readers: No, not that kind of crown. The crown on my rear molar.])