You have to look at the bigger picture to see the comparison between scarcity and discontinued status.
Fish masks - Discontinued for 9 years, high supply, extremely low value
Christmas Tree hats - Discontinued for 9 years, mid-high supply, low value
2016 Summer Balloons - Discontinued for 5 years, high supply, low value
Crown of Seasons - Discontinued for 8 years, high supply, low value
Tokens (category) - Many have been discontinued for years, yet have a low value due to their abundance in supply
And the list goes on.
The comparison of supply vs discontinued status can be applied tentatively, and its weighting can vary depending on the particular item.
In the case of 2A gear, it fails catastrophically in the aesthetics category, with many individuals hating the appearance. There are considerably less 2A pieces than there are partyhats in the game, yet have low value. I can see your argument in regards to scarcity vs discontinued status here.
If you recall from back in the day, third-age druidic robes were traded in the GE for 600-800M- completely undesirable items. They looked like torn white robes, nothing special. Until one day they were bought off the GE by some individuals, making the items extremely difficult to acquire. They were traded for 10-14B on the street per piece, much higher than most partyhats at the time. This is a strong example of scarcity superseding discontinued status.
In the case of druidic's extravagant pricing, they became more desirable as the price rose. No one wanted it when it was traded in the GE, but it was extremely sought after the price went up 20x. A classic case of a Veblen good driven by the snob effect.
I hope you see my logic now, though I do agree with your choice of discontinued status preceding scarcity in some instances.
"Those who dare to fail miserably can achieve greatly."
- John F. Kennedy
22-Feb-2021 00:40:21