I would go big with this one.
Envision the next ContainerStore.com going live with this domain.
Or something abstract like this contained living product if they go international:
contained(dot)com(dot)au
I found an extremely interesting video on valuation that really every domain investor should watch. The video is on Logo Design, and the focus is on the fees that designers charge and how they vary tremendously. At the low end, designers are charging $500. At the high end, $30,000+. Very interesting and the concepts apply to domains and domain buyers as well.
I recommend watching the whole video, but if you leave early, make sure you watch the last 20 seconds starting at 36:02.
Some other details on contained:
There are also over 175 other domains using "Contained"
If I owned it, I would list it at $1-2 million and wouldn't consider offers under $100,000.
If you want to double your money, I'll purchase this month for $3k
From the image below, it is estimated that the Container Home market was $44 billion in 2017, and is expected to be $73 billion in 2025. Just 1% of the current market is $440 million per year.
Let's say you were running a business that is doing even a fraction of this in this market, say $20+ million per year. If you could get terms when buying the domain, how much would you pay for it? If I was running a $20+ million company that is growing and have the ability to buy possibly the best brandable domain for this industry, and could get terms to pay $34k per month (for 60 months), I would pay 2 million without a doubt, and regardless of my bank account balance.
This type of market requires a ton of trust from end consumers and business-to-business transactions. A company could establish instant credibility by coming in with a domain of this caliber.