Why should a product want to be "the next VisiCalc"?

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http://www.bricklin.com/nextvisicalc.htm

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"... how do you deal with the fact that it is unlikely most ASPs will be around to maintain your data ..."

Added as a side read for post: http://news.ycombinator.com/item?id=429477 which asks the question, "Ask HN: What can't you do in Excel?"