Wow... No offence, but I have to say that 250 bucks is a bit high just for that... You're not getting a whole lot for your money.
Personally, I'd go the tape/FM route. I just couldn't handle spending that much on something like that. But hey, if you love having high quality audio, and have the cash to spend, then I guess why not do it?
I'd probably email the site that has the 150 dollar ones and ask if they know when they'll be getting them in stock. Who knows, you might even get an answer