Selling my hard drives

I have 3 of these available $325 each:
Seagate Exos X18 18TB Enterprise HDD - CMR 3.5 Inch Hyperscale SATA 6Gb/s, 7200 RPM, 512e and 4Kn Fast Format, Low Latency with Enhanced Caching Internal Hard Drive HDD - ST18000NM000J

I have 4 of these available $230.00 each:
Western Digital 14TB Ultrastar DC HC530 SATA HDD - 7200 RPM Class, SATA 6 Gb/s, 512MB Cache, 3.5" Internal Hard Drive HDD - WUH721414ALE6L4

I have 4 of these available $60.00 each
Seagate BarraCuda 4TB – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache Internal Hard Drive HDD – ST4000DMZ04/DM004

I have 7 of these available $65.00 each
Western Digital ENTERPRISE 4TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5 Internal Hard Drive HDD - WD4000FYYZ

All are less than a year old except the 7 Western Digital Enterprise 4TB drives.

The drives are all plotted, you can use them immediately. I have them on Space Pool now.

I had zero problems using any of them listed above.
Rob, Naples, Florida

I am interested in exos x18 18TB drives

They are sold $321.99 new at Amazon right now.

Assuming they have 4 years warranty remaining, I think the fair price should be $250 (4/5 of the current market price for the new one, though there is a risk of buying used).

Willing to let go of them at this price point?