Some repairs are crap, due to budget limitations.

[toobagrowl]

^ That tuba looks better than most 'repaired' tubas most of these music store 'brass techs' do; trust me.
Looks like you probably did $500+ worth of work on that tuba, but charged less than $300, so the band director is getting a deal.

Those YBB-321 tubas are kinda large, and frankly, too nice for middle school. Those kids are lucky, and they probably don't even know it. YBB-321 tubas may not be the 'sexiest', but they work especially well in high school and college bands

[Tabor]

I will bet you $2000 that I could do a worse job.