This is unnecessary, Sure Steemit is currently the 'face' of steem being most people think steemit = steem.
Sure it'll take some time to change that but rather than spend $1.4 million on buying the domains we could spend that on advertising other frontends for like 10 years.

It's not worth it.
Make new steem social media accounts, promote them instead.
Make a new front end and promote that instead.
Change peoples perceptions of steem rather than spend an insane amount of money buy up the old stuff.

I for one won't put a penny towards this.