Modular ships

Less of a game suggestion, more of a suggestion for people to think about how they build their ships.
An interesting concept i've had for a while. not sure about anyone else but my idea was ships to be modular mostly for repairs since the parts could easily be swapped out for something more efficient.
Since cargo, power and now thrust can be shared via rails why not make use of it?
(yes there probbably will be some performace issues and what not but it still would make ship repairs a lot...

Modular ships