hi all, so after week of mining, I am still confused and I am hoping that someone can explain few more things.

So am I reading this right that blocks play critical role in rewards. E.g. if a pool has not found a block for 5 days, then we are all only getting tiny payout? e.g. at 550gh/s I am getting approx 0.0025 for each block found and in last few days we had a good run so there were quite a few. So thats cool. However, if the pool has not found a block for a week lets say, does that mean that all I am getting is the same 0.0025 ? If that is the case, I understand now why ppl are jumping pools but how does the equatino work out over long term if I stay with the pool, does it balance out ? Also, how many blocks on average does Slush's pool find ? Where can I find that statistic?

also regarding the long periods to find a block, if the above is true, then its bit crazy as for example, if I am running a 1THs setup which would chew up approx 900W of power that would equate to $5.40 electricity cost per day but if all I get is 0.0025btc, thats only equal to $1.50 .... so thats why this all confuses me. If someone could explain, that would be great. thanks