Maybe I'm a dummy, but I consider Coinbase safe enough for up to 10 BTC (or $4000-$5000). My bitcoin stays invested, so I've never had that much in there.
What do you mean by 'invested'?
Invested in shares on CryptoStocks, HaveLock, or other gambling sites?
How do pools secure their bitcoins? Well mostly pools are holding other people's bitcoins. Why bother securing them? (The answer: pretty poorly.)
Why bother securing them? Just concerned about attackers getting into the pool's bitcoind (if that's how they manage the keys), or if an attacker manages to ride your user session.
Do you think this isn't something I should worry about? I saw that some pools were hacked last night and the compensation came out of the pool owner's pocket :s
Well, if they bother to compensate, then they did take security seriously, but attackers still managed to penetrate it.
Some pools don't even bother, since it's not their money, it's the miners money. They delete all evidence of the hack and continue operation.