I'm not very good at prepping for several reasons, but I think the ones I read have the now aspect about right. "Start now, you should have started 10 years ago. The best time to plant a tree is 10 years ago." But given that, they mostly seems to say do what you can now. Don't wait until you can do it right to start. I think this is good advice, and you should take anything that is obvious marketing with a grain of salt (and you know, check prices).