I've learned, over the years not to play games with optics. I buy the best I can afford. With good optics the device you are using actually disappears and it's as if it was your eyes seeing it without any help. If you've ever looked through a really good pair of Binos you know what I mean.

I have a 10x magnifier I bought from Deutsche Optics years ago as well as a Zeiss hand lens which is about 15x. Superior resolution always trumps increased magnification.