@OP,
I wanted to inquire before giving an opinion. Since you are familiar with the Vandy 'sound', then that makes it easier to give advice.
I know this is probably going to start a flame war, but I will give my opinion nonetheless.
As previous posters have indicated Vandersteen has been around for decades. For good reason, they provide great sound at a reasonable price point. Add to that time and phase coherency, in the higher models- pistonic drivers and equalized bass.
I have limited experience with Tekton, but I and a few others found them to be engaging at first, but eventually fatiguing as the listening session extended. -Which is something a Vandy speaker never does.
I believe Tekton offers a trial period, so you can give them a try and only lose shipping if you don't like them. Though from what I have read, you have to send them back in pristine condition.
For my money, I would get a pair of used Treo's (Quatro's if you can swing it). Don't sweat the CT tweeters. Otherwise, a pair of Magnepans or Sound Labs if you want to try electrostatic speakers.
