You fell in love with the place...
Crystal balls don't exist. Maybe without your extra $40,000 you would have missed it. You and your wife pondered it, and decided it was worth it.
I have over ten years of real estate under my belt, have been carefully researching my specific Florida market since the crash a few years ago, and I STILL managed to overpay a bit for one building a couple months ago... I knew I was probably overpaying, but I saw value in it that I believed others didn't exactly see (or not as much) and I did not want to risk losing that one.
In retrospect I now know for sure that I could've had that one for less (most of my other acquisitions were fine -- actually there's one other one on which I overpaid a bit for the same reasons) but I regret nothing. I wanted it, I did not want to miss that one, so I went the extra mile with the bidding.
On the other hand, in ten years I've seen the opposite scenario play out plenty of times: I think I can get a building for a lower price, and I end up missing on it because someone else paid more than I personally thought I could get it for.
It goes both ways.
So, the glass half full view is, you fell in love with the place, and you did what it took to not miss that deal.
If you had been able to tolerate the possibility of missing that one, you could've waited a bit, researched Stratford a bit more, and I suppose you would soon have realized the pricing on your loved one was too steep.
But you didn't, that's fine.
What happened to you sucks, but hopefully you'll find a bit of comfort in the fact that it happens all the time to others too