Things are definitely going to get more expensive in game. LOL
I am thinking cheap ships that carry cargo. LOL
Cheap is good for quick replacement, but then again, they are also more vulnerable and can be lost easier as well. (The cheap ships just don't have the same weapons load-out as higher valued ships) There goes your cargo.
Cheap with a good escort would work, but going cheap just for ease of replacement means you plan on losing a lot of cargo, which is going to be a hit on your REP for reliability to be able get the job done.
Big expensive ships are going to be a target because of the value of the load, but small cheap ships will be targets simply because they are....well....cheap and easy to hit n run.