No, the other two would not be any more difficult to keep than a G. rosea, and in fact may be easier. G. rosea are usually suggested to beginners due to their availability. But they do have some idiosyncrasies that can drive new owners crazy. The other two are more baseline. All three have essentially the same care requirements. But if the availability is there I'd opt for one of the other two over the G. rosea and I'd pick the A. chalcodes, because it is my personal favorite.
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KJ Vezino
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Missouri Tarantula Enthusiasts Group

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