Yes, you will have to wait. I was told that when they have the right laptop ready with them, they will ship it to you. And only then, you have to pack the old laptop and send it over to them at their office. That ensures you don't have any downtimes. Plus the shipping charges are borne by them entirely. Contact the Dell representatives for the confirmation. But, yeah you would surely have to wait that long. Are you happy with T7250? You could always ask for refund (on the price difference). See what they have to say about it, considering they have to go through a lot of pains, they may throw a good deal at you.