Key things: don't reveal your use of it (it's value to you) and aim low on the price.
I'd say that the key point is: Don't give away the value to you (hell I even used an anonymous email service to ensure I as the purchaser couldn't be identified) and be a penny pincher and aim low. I still paid a fair penny for mine, but it has actually made a difference to what I do and I think it was worth it.
Key things: don't reveal your use of it (it's value to you) and aim low on the price.
I'd say that the key point is: Don't give away the value to you (hell I even used an anonymous email service to ensure I as the purchaser couldn't be identified) and be a penny pincher and aim low. I still paid a fair penny for mine, but it has actually made a difference to what I do and I think it was worth it.