Recently at the office we have been talking about placing large files into our TFS repository. The files themselves are XML, usually 100-200MB in size, and sometimes as lar
If those files were constantly changing & their deltas were big, I would eventually expect a penalty in the overall TFS performance.
You clearly state that this is not the case, so, provided that your SQL server has the capacity to house the storage, I believe you should be able to proceed without any implications.
A minor downside you may experience, is when you 're constructing new workspaces, where you would have to pull those files from their repository. Unfortunately this does also happen during TFS Build, so it's possible that your builds will now take that much longer. The severity of this angle greatly depends on your network constellation/stability.