MrAlaskan, it appears that your problem is specific to Windows 10 Technical Preview - you may want to provide feedback to Microsoft regarding this. I have never experienced that issue with any of my Windows Phones - if I choose not to install an app, even if it was already queued, it will disappear from the queue permanently.
There are a couple apps the continually show up but won't download. Most are system apps. They just show an error code and reappeared any time you check for app updates, reboot. Microsoft's only suggestion is a soft reset, and that doesn't work