But the practical side of me says to stay within my means. Not financial means, but spatial means. Really, how much space do I have for new containers? In my house, not much. I'll base my container selection and purchases on some key factors:
1. What spaces NEED new containers? What size and shapes work best there?
2. What current containers need to be replaced?
3. If I replace a container, can I use the old one somewhere else?
4. Can I just get rid of the stuff in an old container?
If you are upgrading or upsizing or just replacing a container, make a plan for that old one. If you can't use it, can you "afford" to store it? Sometimes the answer is no, there just isn't a good space. In that case, pass it on to a friend if you can.
I recommend a practical approach to purchasing containers, the same attitude you used to decide you needed some!