On some level, that's understandable. For nine seasons and 432 matches now he's kept goal for Chelsea. 432 matches of searing eyes, rugby caps*, catlike reflexes, aerial dominance, and questionable distribution; he's become an institution, a known quantity.
* Technically, he got to play about 100 matches before Stephen Hunt
With three Premier League titles (and the record for most clean sheets total), four FA Cups, two League Cups, one Europa League, and one Champions League to his name - not to mention being less than 10 clean sheets away from breaking Peter Bonetti's club record, as well as 100 caps for the Czech Republic - it's hard to argue against Cech being Chelsea's greatest ever goalkeeper. Yet we hardly talk about him
Fortunately, the Wall Street Journal's Josh Robinson did talk about him - and in a rather terrific way at that. Instead of quoting bits & pieces, I'll just implore you to click on over and give it a read. It's great.
When you're done - or perhaps as an appetizer - be sure to check out Cech's best saves from the 2012-13 season above (the Chicharito miracle save is at the 3:36 mark). And if that's not enough, here's the compilation from last season, which features all his exploits from the FA Cup and Champions League finals.
It sure is going to be an interesting decision at some point in the future when/if the club decides to integrate Thibaut Courtois (who is magnificient as well). Until then, let's enjoy Big Pete.