There has definitely been a huge rise in the demand for vegan food in the last few years! It's great to see people paying more attention to sourcing their food in a more sustainable and healthy way. There really isn't anything you can't make out of plants. ;)
Can I let you in on a secret? If you keep it really simple vegan food is actually much less expensive than meat and dairy. At least in my part of the world. I know certain places it can be tougher to have access to fresh fruit and vegetables, but beans and legumes are generally much cheaper than meat. I tend to spend a little more on food because I enjoy creating different things and joining in on the food contests on here, but if I stick to the basics and don't buy anything processed my budget is actually pretty good for groceries. You just have to get creative sometimes. :)