save your marriage Kaleun, get headphones.
Type IXB is a really good boat to grab early in the war as it stays competitive
for a long time, however it is withdrawn in mid 44 just in time to switch to a
type XXI and If you can take the absence of a single deckstorage spot
it is a fine boat and not buying a IXC will save you some prestige for later
when its time to upgrade to type XXI.
In Type IX-XI Uberboot mod I have had to make type IXB available for the
entire war as IXB (1939) is basis for the Cruiser Sub.
http://www.subsim.com/radioroom/showthread.php?t=104792
MM