I would like to propose a mechanic which increases the exclusivity and long-term value of our Haunt-1 Gotchis.
There are many possible methods to do this, but I believe the fairest method is to create an annual event where only Haunt-1 Gotchis can participate in.
Many ideas come to mind like:
Every anniversary of the launch, Aavegotchi's annual games are held where only Haunt-1 Gotchis can participate
Other Haunt Gotchis can participate, but would need a Haunt-1 Fren to partner up with
Maybe a very low tax can be imposed to 'partner up' e.g. 0.1 GHST
Haunt-1 Gotchis who 'bring the most Frens' could win prizes as well
Anyway, these are just some ideas of what an exclusive Haunt-1 Gotchi event could look like. I am sure, further down the line, the idea could be refined but the gist is there.