This is where my idea has a dice roll gambling chance of the doctor salvaging anything as well as a direct fee for using the doctors services in the first place.
If you say avg out an implant set to say 2.4bil isk, divided by 6 for alpha to omega, you would end up with 400mil avg value. But we all know that omegas or epsilons are worth considerably more and alphas and betas are less. If the doctors fee is a % of that avg value, a very high % in the 60-80% range. This would mean that even if you got an implant it would be a dice roll as to whether you scored a nice deal or even lost isk entirely in your attempt.
Making a psuedo game of it, much like the hacking minigame, where you would control the doctors efforts as you uncover and “see” the different implants over time as you clear the game. Where if you are working on removing say a delta and the omega shows up ‘over there’ you could change from the delta to the omega thereby destroying the delta in the process but your reward might be higher in the final end. Where as if you stick with the delta you are almost guaranteed to get it but would miss the omega for lack of time. Think the destruction of the cans in the sleeper sites after a timer goes off.
It would add a bit of player added fun to the entire process rather than activate salvager or hit enter and receive bacon.
So I think the very real possibility of the gambling action where you can make hundreds of millions or lose those hundreds if you only get a bad priced implant. And only 1, max 2 which would be extremely rare, would ever be possible. Wouldnt make it an issue with overproduction or overusage and would be a rather niche thing to do.
Think shooting craps. Its a gamble you make with a dead persons soul!!