The reasons for str's success are threefold
1. The underlying asset is Bitcoin, which is in an eternal bull market
2. str is in the Nasdaq 100 index, and the passive buying money globally is massive
3. The strong financing capability provided by backers is fundamentally optimistic about Bitcoin
These three points, if replaced with any other asset, would not work: stocks lack liquidity, and coins are knockoffs
Bitcoin has made MicroStrategy successful, not the other way around