Model Master, as one who has been rather unrelenting in my criticism, perhaps I share a greater burden of responsibility for the ire directed at you recently in this forum. I will say that I read your last post here with a good deal of interest, and re-read it a few times before thinking about how to respond.
If what you say is really the whole truth, then I feel that I owe you an apology. I will do so here publicly, as I have criticized you publicly. I confess that, while I do not either understand or completely agree with your employment of AI, that you seem to be nonetheless motivated by something resembling altruism or charity. Imperfect altruism or charity to be sure, but I guess that this is better than simply perfect greed.
You seem to me to have offered a flawed-but-reasonable alternative to AI for achieving his dreams---while achieving your dream of a massive model collection in the same way. Wowever, having said that, I COMPLETELY AGREE that, now that the "building" and "displaying" is becoming a problem in itself, you can NOT simply "turn out" AI to "find another job"! For in truth, YOU would STILL have your "dream collection" (which has brought you fame and notoriety), but poor AI will now be destitute if unable to make ends meet; and I agree that, in a sense, you may have taken from him the sheer joy of building models--something that might not be undone! You owe him that respect!
Several of the people responding here have offered very good suggestions, which I will echo, and offer some of my own. You most definitely should sell off some recent builds, or older ones that may not meet current standards. Judging from what you've said, the collectors market there seems to be thriving. This would make more room for you and enable AI to continue his employment.
Additionally, Steve has made an excellent reccomendation--why not pay AI more money for an individual build? Since display space is a problem now, the ability for AI to make the same money for less builds would actually serve you both. AI's profit would be increased because he wouldn't have to spend as much on building/finishing supplies. You would get better models and not fill up yourspace so quickly. That works for you both!
I would also urge you to arrange some sort of "publicity campaign" for both AI and Tuk. You said that you have a certain degree of notoriety and fame because of your huge collection--because of AI's and Tuk's work. SO if you can foresee the day when their services might not be needed by you, why not give them their well-deserved credit, which, in turn, would undoubtedly open up new doors of employment for them--something they've certainly earned the right to, at this point! I'm sure they would appreciate this almost as much as if you had forgiven them their debts!
If there is any grim satisfaction to be found on my behalf, it is that I believe I had "nailed" the reason why AI's builds never seem to improve--alas, he was motivated simply by a "deadline", not by love of the hobby, nor by personal investment. Cold comfort for me, really, but worth noting....
So in the end, I apologize, Model Master, for "projecting my ideals" on to you, and for acting somewhat like a "schoolyard bully", Yes, I am somewhat perturbed that you seem to have no interest in "hanging out with us on the playground". But perhapsI should just be grateful for the true and real friends I DO have here on this wonderful site. I also agree with Arty that it would be great to see more of your fine builds. I have "searched" your name, and have seen your work; it is worthy of posting, and you should be proud of it.
My apologies. I shall not again sullly your posts with inappropriate comments. What others do is their freedom, but I shall not join the fray. That is not to say I will not concur, or criticize with good intention, but I will try to take a "higher road" in the future. Peace...