I understand your points and agree with them. That said, a catcher should be at the bottom of the list of holes on this team. Bad as his hitting may be right now, he did show sparks early in the season, so it is within the realm of possibility his numbers go back up. But more so, as others said, catching isn't all about hitting. Pudge calls the pitching, and does a phenomenal job at it. I'd say he can claim at least half he credit for the phenomenal pitching we've had. Yes, we've had awful pitching this season, but that typically comes from pitchers who have no business on a major league roster. I don't believe Strasburg would be as amazing as he has been without Pudge. It wouldn't make a huge different considering his talent, but I believe it does make some. Case in point, look at Capps. Early in the season he was lights out. Pudge goes on the DL and that week with Nieves was when Capps blew two or three games after, I believe, not having blown any before that. Not a coincidence.
If it were our only problem, maybe look at other options. But we need a RF, 2B, lead-off hitter, CF, 1B if Dunn gets traded, an extra bullpen arm, a whole new bench minus Morse all long before we should worry about a catcher who simply has had a below-average six weeks. Like I said, I understand and agree with all your arguments. But I can't accept that catcher is a position we should be concerned or worried about at the present time. Now a backup catcher and I'm with you 100%. Nieves needs to go ASAP. He's twice as bad a hitter as Pudge at his worst, and as I explained, can't call games for crap. He has no above average, or even just average, tools as a catcher. But there's a big difference between trying to find a backup catcher and a starting catcher, so even though we do need to find a catcher now, it isn't the same as trying to find a replacement for Pudge.