Wow let me first say I envy you. One day I will be doing what you are doing, but at this point in my REI career, I am not there just yet in experience, but I envy your big problem because that means you are at a place to solve big problems. My current employment requires me to listen to peoples issues and than I provide feed back based on what I see, so my following opinions are merely insights, not necessarily advice.
The following are based on 2 conflicting notions for you to consider:
1) Learn from your mistakes. You once passed on this deal in the past and kicked yourself ever since for doing it. Your pride got the better of you, and it caused you to miss out on a deal that will now cost you $122k more if you were to buy it today. What will happen if you once again pass on this deal, and then get the opportunity to purchase it later, for even more?
2) Trust your instincts. Some thing about this deal in the past kept you from buying it in the first place. You may have called it pride, but it may also have been your gut. When in doubt trust your gut. There have been studies done where people were given an extraordinarily difficult test, and the ones that chose the first answer they considered, did much better than the ones that decided to change their mind and choose a different answer.
If you were looking for an answer to make the choice easier, I'm sorry for leaving you in the same boat you were before I started typing. However, I do hope this allows you to see what is most true about yourself, and perhaps that will make the decision more clear.
I would love to know what your final choice is and how the deal goes in the end.