The Che Guevara "Rarity" ?

On Thursday 5th October, Ireland issued a stamp to honour Che Guevara (he was killed 50 years ago in 1967).
I was one of the first to buy several copies of the stamp and some I put on postcards which I had produced myself for the First Day cancellation.
The publicity indicated 122,000 stamps were going to be printed. The next week I bought some more as several USA-based friends wanted one. I was told that it was a big seller...mostly with young people. Within two weeks, it had "sold out" and it was announced that more would be produced. Oddly it was designated as a rarity and sold for rather high prices.
On Tuesday this week I bought some more...they have been available since Monday. It is certainly not rare and I understand that the manufactured bubble has burst.
It is worth mentioning that FDCs also "sold out" and will not be available for about ten more days. Presumably the "new" FDCs will still be cancelled as "5th October". Of course unaddressed FDCs don't actually go thru the mail but surely this underscores that FDCs are not actually cancelled during working hours on the day of issue.
Unaddressed FDCs are available for one month after issue and presumably cancelled as required for counter sales and mail order purposes.
I cant help feeling that people who paid up to ten times face value for a "rare" stamp which turns out not to be "rare" at all will feel "burned" by the experience.

Is it possible to distinguish between the first and second printings?

As far as I can see, there is no difference.

Sad to say it is not a "designated as a rarity " all 3,000 serious Ireland collectors can buy them by the handful . Almost all modern Ireland stamps are all floating around ebay at a discount . Hard to believe 122,000 of anything but I-Phone and maybe the hottest gym shoes would be attractive to the younger generation .
Over the last 60 years there has been a steady stream of" HOT " must have items every few months from the stamp dealers on the British Isles . Linn's Newspaper all my life had "must have" that the recently issued rare discovery that collectors need ,then a few months later it crashes and burns price wise .