With more and more people modding, the prices should get lower. Just tell whoever you talk to, on CL or wherever that you saw it for $25 somewhere else. Try to bargain down the price. Plus if you already have a DL burner or a hookup somewhere else they don't need to throw in any games, which should lower the price a bit too. At the end of the day modding your box yourself is probably the best bet cause then you can update the firmware and charge your friends too. That's a win/win situation, the profit would pay for your DL discs and then some.
Also, I listened to StepTo's complete forum speech at PAX. When they open up the floor for questions, there's some things worth noting. First off, StepTo originally says "turbo-modded controllers" are not a ban-worthy offense, but then retracts that statement via twitter and says that they DO look for rapid-fire controllers and it DOES constitute a ban. They also inferred that they have the capabilities of peeking in on XBL matchamaking to investigate in-game glitching or cheating. Whether or not that's true or was just said to intimidate remains to be seen. They talked about teamkilling and how there's not a complaint devoted for it. One of the members on the panel said to use cheating as the name of the complaint since it affects the outcome of the game. The most interesting thing was when someone asked about how they go out about law enforcement interaction with any problems that occur. They danced around the subject but said they are in touch with groups like INTERPOL, FBI, Secret Service and so on. I found this kinda interesting because for every other topic they said some clear-cut answers, but with this they didn't really nail an answer down. StepTo also brought up people playing the French rip of ODST and how he banned someone who was streaming it on Justin.TV. These guys really take pride in their work from what it sounds like. Kinda seems like they got something up their sleeves for the next banhammer.