I don’t know - I found the pricing very reasonable so far.
building a BB is a mayor investment and takes time.
even for DDs you need the slips and it could take months
producing (assembling) tanks is done in days…
For the steel used in a BB you could easily build several thousand tanks.
if you compare numbers;: shermans were produced: 55.000 or so (?)
at the end of the war the US had 4000 warships (?) - no sure about the numbers ;)
A German Tank campany (3 platoons) were 17 Tanks - 4 companies to a batallion make 52 tanks…
1944 the Panzer Lehr Division (model division) had 101 Panzer IV and 89 Panzer V (Panther) + 31 Tank Destroyer (IV L48) and just under 10 StuG III and that was FULL STRENGTH.
There were ONLY 43 different Panzerdivisions in the Wehrmacht (+7 SS)
That in mind I think the current prices are quite “historical”