I've spoken with about half a dozen operations and it's been a pretty solid consensus that the Internet is the way to go. With the amount of competition between the webcast guys, the systems
Based on what sellers have told me, satellite costs $4,000/hour vs about $2,000 per day for the Internet. That can mean a difference of $2,000 vs $12,000 for a three hour sale. Also, none of the Internet guys are going to cut your sale off at the end if you go over some time limit. Nothing would piss me off more than paying $20,000 for five hours of air-time only to have the tail end of my sale preempted by Big Joe's Polka Show or some show on model trains because the auctioneer didn't rush the sale enough.
You also don't get impulse buyers on RFD, they have to have planned on buying before the sale to call in. I know I've bought a few cattle off the web that I didn't plan on buying before the sale because they dropped. I wouldn't have gotten them if those sales were on TV.
The only negative of the Internet is the Internet connections themselves.