Fortunately, I have a Fluke 123 Scopemeter for such purposes.

 

I carry a Tekscope 720A.

I like it a lot; it's 20 years old, but it's still better than the USB scopes I'm seeing. Only one problem; it isn't mine. I'm in the process of weening myself off of the tools provided by my employer.

I'd really like to have a THS3024:

Or a Fluke 190-502/S:

But even still, these units are bulkier than a USB scope. If a USB scope had these specs, it would be ideal.

 

From what ive seen, this hantek seems like the best bang for your buck for a usb scope.