Nebulite diffusers

I always considered it the tradeoff for being able to 'trade' potential lines. Nebulites are already quite overpowered as they are (Every other version would love to get them), if they wouldn't be destroyed there would be such a load of nebulites entering the market they'd decrease very rapidly, making them even more OP since they'd be much cheaper. To be honest, the prices are fine for them at the moment.
And didn't you get them from nebulite boxes as well?

NexonAM needs to re-evaluate the whole nebulite obtaining method entirely. Boss Nebulite boxes that give out A rank+ or different grade of box, just something different instead of grinding for endless hours never finding a box.

If not that then a better way of actually... getting better nebulites not having time limited events to buy premium fusion tickets.