I find it quaint that you comment on the similarities in the meanings of the various cards. Any good reader will be able to read with any pack as the cards and the 'story' behind them is the same no matter what the picures on them depict.
As for those meanings they are really only guides, and the cards used for readings should be the ones the reader is most happy with. Over time the various cards individual meanings will become more 'personalised' to the reader rather like certain images in dreams mean basically the same trends when dreamt by one person though they can mean something entirely different to another dreamer.
I do believe it is possible to 'learn' to read Tarot to at least a basic level but I also believe the 'true' reader has to be in tune with the cards and a lot of the reading is actually subliminal and not merely what the booklet describes each card as indicating.