I've picked up a few good deals, always manage a profit though.
1979 Yani 800, picked up for $200, needed a repad for around $300. Sold for around $700.
1925 Conn Chu C-mel. Picked up for $100, sold for $150
1926 Conn chu berry Alto, relaq. bought from E-bay for $250, sold after repad for around $600. Repad ran me around $200.
Selmer Signet Clarinet, cost me $100, and altogether have $120 in it. Plays fine.
Martin indania got from Sidepipes on SOTW in a trade.
Armstrong student flute got from sidepipes also in a trade.
WWBW Straight Soprano Sax, got for around $200, sold for $250.
Not great profit, but still reasonable for the time I owned the horns.