After voting please explain why you voted that!
It's probably the only way to become a millionaire in the (relatively) short term. If you have a better option to put 100k at right now I would like to hear it, because no matter how much I luck around, all I see is stupid startups, ICO scams, falling stocks, random alts... what can give you realistically the 900% gains needed to become a millionaire from a 100k investment other than bitcoin?
Sure we will see a random alt deliver higher gains but it's a lottery, no alt has fundamentals as good as bitcoin.
I dont agree with you as their are some altcoin who are very promising like ETH, ICN, MONERO, ETC., which in long term will be very good like BITCOIN.
Going for investing 100k pound only i can advice is always buying is a right time, but buy in split if you are having budget of 100k then go with 25% right now and on down price go more with 25% as you cannot tell that this price wont go down so you should be prepared for down price rate so if you split and buy then your average buying rate will become low so that if their is any bull run for short term then you should be able to take profit in that. Even if you are going for long term my advice is to go with split buying rate.
I think you are delusional if you think those coins can go up as high as bitcoin in %... the first of all you should ask yourself is why?
Sure all altcoins can potentially pump but why would any of those outperform bitcoin long term? ETH has still to hardfork again, ETC is still a very marginalized fork, Monero has problems scaling, ICN depends on ETH since its an ETH smart contract which means if ETH fucks up (another hard fork) ICN could be affected... so I dont know what should I buy other than BTC for long term goals.