Extremely out of line.
I wouldn't consider spending over £1000 on a TV "budget".
If I only paid about £300, then maybe, but even then I wouldn't lie down and take it. Admittedly, I am one of the lucky ones who have not had a problem with my TV <sound of hand touching wood>. Do you think Tosh are going to ramp up the prices for the WLT68 series to allow them to fit higher grade components ? I doubt it. They want market penetration and set a lower selling price to get people to buy.
Legally, Toshiba have to supply a tv "fit for purpose", which, reading the number of posts about banding problems, they don't seem to have done.
You don't have to settle for it. If you are not happy, complain. That is the one thing we don't do enough of in this country. But, remember (and this is not directed at the OP, but at other people who come on this thread and moan), you have to contact the supplier/manufacturer. Just posting a message on this forum won't make a blind bit of difference.
Sorry, I'm ranting a bit now
....but, anyway, back to your original question, this is not a budget TV. You should expect an amazing product - if not at least a TV that you can watch without any problems.