Shadowood wrote:One mans trash is another mans treasure
Indeed : RFA and Emergency Call are of no use to the non-brig owner : but are a valuable asset for those who do sail them : one problem is that the chances of getting any particular common card are the same : so less popular cards, like Dutch India Company, turn up as often as the more widely useful ones like English India Company. The same applies to uncommon and rare cards : Hired Diplomat has an uncommon usage : its very specific and necessary for that task but is not needed that often whereas Master Craftsmen is always useful and in demand.
I'd be wary of discontinuing existing cards unless it can be shown they serve NO purpose at all, or can be easily replaced by other means, such as techs.
As for the '50 cards for a penny' syndrome : that wont go away as long as all cards have that equal chance of being selected for presents or booster packs. Its the flip side of certain cards having a very high value due to higher demand, like Mindbars.