I think it could be kind of neat if when a rocket is saved we could add it to a comparison where we can put 2+ rockets side by side spec wise to compare delta V, theoretical payload to LDO, GTO, and a few other milestones assuming optimal trajectory as well as the ability to have silhouettes or static images from some angle of the rockets standing side by side to do size comparisons and various things since as it stands it is quite difficult to directly compare two rockets without putting together an elaborate crawler system to move one off the pad in order to spawn the second. It just seems like it would be nice to be able to have direct comparisons between rockets. For instance I've put together scale a 1:1 scale V2, Falcon 1, Falcon 9, Heavy, and Saturn V and it would be neat to be able to see how their sizes compare. Theoretical payloads can just be computed by adding mass to the upper stages until some critical delta V required to reach various orbits is achieved, naturally the delta V is slightly variable with TWR but a roughly average value with ~5% added should provide a healthy margin wherein max payload can be predicted.