So you want one person making all the decisions for bitcoin and you want people diversifying and buying altcoins? Might be the 2 worst ideas ever...
just the update alert, which is different from having consensus on a specific upgrade about bitcoin, still i'm a partially against the idea of diversificate your money in mnany altcoin, at best i could diversificate in one altcoin only additionally to bitcoin, and that's monero probably
Personally I wouldn't bother with alts. None of them show the promise that bitcoin does. As for putting savings into bitcoin I'd put an amount you can afford or more importantly are comfortable with. I think bitcoin will be a good investment longterm but its certainly not guranteed.