Really approve this, but in order to not crush the GTL system, let's make the auction operates once a week, sort of.
Moreover, not everyone can put their pokemon in auction. Only people who sells a lot on GTL can do that, or other people who is a breeder, or shiny farmer, IV farmer, can do that. I am pretty sure with this system, the price could come at a negotiable price.
If you could, the dev can make a whole sale one kind of pokemon. For example, a batch of 50 Magikarps starting at 30k dollars bidding. Then next week, a batch of 50 (little-puppy-eyes) Growlith starting at 50k. Random IV, ofcourse. That will make the breeders starting in Unova less burden. (don't reply with things like who needs a batch of 50 magikarps, oh, you can't be sure :D).
Anyway, welcome to Team Rockets :D.