I agree. It would take a pretty significant advantage for some other coin to capture Bitcoin's market share. I believe the fact that such an XCoin competitor would be usable by people directly due to tps capability, rather than requiring all users to line up behind centralized aggregated access providers required by a 4 tps Bitcoin, may be such an advantage.

Further, once everyone is using these centralized aggregated access providers anyhow, what is the motivation of these centralized actors to continue to use the relatively expensive Bitcoin, rather than the more capable, cheaper XCoin?