SBK definitely makes the wallet lighter, but I think it's the only company that offers a $1500 contents damage insurance with their cases.
As for flying with a bow, never had a "problem," one time flying to Vegas the check in clerk did consider it a "weapon" and had me go through the special TSA screening... The agent opened the case and said "really????" closed it up and sent me on my way.
My bow did have problems coming back from Barcelona... Twice. Don't think it was because it was a bow, just rather how they handled oversized baggage, or my bow just wanted a couple extra days in Spain.
If the case is small/light enough, many airlines will check it as a "first" bag not a big help if you are flying alone but with another person it saves a little.
Another option might be to Fed-Ex [PirateShip] it to your destination; get a good shipping rate [HAHA] and it might be cheaper than taking it on the plane.