TubeNet

http://www.ebay.com/itm/Euphonium-4-rot ... 2c69fcb7dd" target="_blank

http://www.ebay.com/itm/Nice-Tuba-or-ba ... 1e751dba42" target="_blank

Thanks in advance guys!

Both have the potential of being expensive wall ornaments. I don't have enough experience with either model to tell you anything that is worth your while.

But if you check this site:
http://www.brassark.com/sale/" target="_blank
and then check the tuba box you will see that there's one for $250. Also, Noah Gladstone could tell you more on the playing characteristics since he's a trombone player.