If you missed out on Bitcoin's gains over the last year and it looks too expensive now to get in, Monero's started making some big moves the last few days, and after Vault7 this could be just the beginning...
It's the #5 cryptocurrency now and still only 1% of BTC's market cap, you could argue it is very cheap...in many ways it is superior to Bitcoin, and like a v2.0 it addresses Bitcoin's inherent weaknesses (mainly privacy and fungibility, but also premining, ASIC computing centralization / forking / scalability).
Governments and nosy third parties definitely have the computing power to datamine the blockchain metadata, and most Bitcoin exchanges already require ID verification, making Bitcoin less than private if authorities try to regulate, ban, or tax it. History shows they will try (and fail).
Bitcoin has first mover advantages, but so did Altavista and Lycos...I think it will keep growing and it's impossible to stop, but it's hard to see it holding onto 90% of the crypto market capitalization in the long term.
It's sheer size and the internal politics (due to concentration of mining pools) is already stagnating necessary upgrades, making it hard to scale and driving up transaction fees.
Also with Bitcoin getting the headlines and attention as the dominant cryptocurrency, it makes it an easy target for desperate governments trying to prevent capital flight.
Other alt-cryptos can outperform (Ethereum's already up 30% since the Chinese government clamped down on Bitcoin exchanges), and especially Monero due to it's superior privacy and fungibility.
If you already have Bitcoin, then the great thing is you can hold both, and it probably won't hurt to diversify.
If you don't know about Monero or cryptocurrencies in general, this is worth a quick read: https://www.monero.how/why-monero-vs-bitcoin