I just looked at mid-size SUV's for about two months before buying a 2015 SR5 this past weekend. I researched or test drove the explorer, Hyundai Santa Fe, Kia Sorento, GMC Acadia, Chevy Traverse, Grand Cherokee and a few others. I ended up going with the 4Runner because of the reliability and true body on frame. It's pretty much the last true SUV in the mid size category. The rest are CUV's.
You say 40k is a lot but if you start hunting around it really isn't. The explorer is maybe a couple grand less as is the Jeep, but if you search up you'll see both of those in their current gen have had TONS of reliability problems. I had a 2009 Jeep Commander before this and I'll tell you the 4Runner is an amazingly well build vehicle compared to it. I don't regret the 4Runner one bit.
It really just depends on your situation. Do you need to off road, or are you just taking kids too and from school or using it for work commute? If so and you want a lot of features for cheap, check out the 2016 Kia Sorento. It's a nice looking vehicle and Kia has turned itself around with a new chief designer who was formally at Audi I believe. Hyundai Sante Fe is it's sister but I think the Sorento looks more capable. You can get a whole lot of car for like $36k (moon roof, leather, all the bells and whistles). Reliability isn't real known but with a 10yr, 100k power train and 5yr/60k bumper you should be good.
I wanted to like the Explorer but it just drove like a mini-van to me, and with all the known problems I couldn't go for it. If I didn't have so many problems with my Jeep the new limited Grand Cherokees are gorgeous and can be had for around 36 as well.
In the end you get what you pay for, and everyone looks for different things. Get out there and test drive some vehicles. Find out your price range, what exactly you need out of a vehicle and go from there. Feel free to PM me with any questions.