Well its a normal human nature that we always switch too the best option just like we switch from the faint money system to this vertual money system but i don't think i will leave bitcoin usage just from any altcoin because its priced crossed bitcoin price
There are definitely some "better" types of cryptocurrencies, or ones that have more features or extend upon the features offered by Bitcoin, but even though they are classed as "better" it doesn't really mean much if they can't get a following that is interested in keeping the crypto alive beyond speculation.
The price of Monero rose more than 120% in the last few days. It is a good coin with anonymity, It might replace bitcoin.