There’s no two ways about it, you need to be pretty committed to embark on the process of learning how to grow asparagus, you also need a bit of space, both of which, I suppose, go towards explaining why it is so expensive to buy in the shops!
However, the sheer delight and satisfaction in producing your first crop makes it all worthwhile!
Plus, although there is a lot of investment required in terms of preparation over the first year or so, if you do it properly then you could be reaping the delicious benefits for many years afterwards.