I suppose there are some networking opportunities, but would you be networking with soon-to-be dinosaurs?
I hope the poster is aware that the NY floors are pretty much gone (completely in soft commodities) and that 10% of CBOT agric futures action takes place on the floor (I think it's about 50-50 in ag options).
Check out the CME site, they're happy to squawk about GLOBEX with a daily chart showing floor vs. electronic activtiy.
Find some CME or CBOT floor traders or brokers on Twitter. Many of them grumble about the inevitable day when they'll have to do something else.
There is no doubt that starting as a clerk or a runner you can learn a lot about the mechanics of your assigned market(s), but is that a good preparation for the market of the future (the future has already arrived in many products)?
And if I/we still haven't convinced you, be sure to watch "Floored" and "The Pit" - they're both available on Netflix, I believe.
Here's a brief (8 minute) video made by Iowa Public Television