A 4 letter dotcom registered in 2002. Curious what it was used for, how you got it for this project, and what it's worth on the market if you were to sell it. I feel a sense of awe like it's an old statue.
3L.com domains start at around $10k for the worst letters and go up from there.
2L.com start around $500k.
Add in numbers and the price falls substantially. You can pick up 2 letters + 1 number (e.g: b0w.com) for under $500.
The best deals are from expired domain name auctions which is where domains like b0w.com sell for under $500. You can participate in auctions at auctions.godaddy.com, snapname.com, namecheap.com/market, dropcatch.com, catched.com, gname.com etc.
You can use namebio.com to find historic domain name sale prices which will help you get a sense for the values.
expireddomains.net has a complete list of all expiring domains and where to participate in the auctions.
GoDaddy has tens of thousands of expired domains going up for auction each day: you can filter by length and extension. The world of domains is complicated but if all you want to do is get a short domain for cheap then check the GoDaddy auctions each day and wait. prfu.com, exfh.com and zpun.com are ending in a few hours and will likely end under $500.
The person who linked you to josj.com is confusing things: domains can be leased but that's very uncommon, leasing domains is a bad business to be in. josj.com ever finding a leasee at $500/month is a fantasy. List prices are rarely the actual value. Lease-to-own is more common but separate (lease-to-own is essentially a payment plan).
My guess is it was bought because of that.