Gemscopes and scales

Does anyone on here recommend a gemscope or digital scale? I've been looking on these threads for information and I couldn't find much. I don't want to spend more than 40$

I have this one http://www.harborfreight.com/digital-pocket-scale-93543.html

this works too:

http://www.harborfreight.com/1000-gram-digital-scale-97920.html

theyare all pretty similar, my buddy found a nice heavy metal one, mine is all sleek and has a led ight too, just look for one thats like 40x or more, 15-20 doesnt work great IMO, radioshack has amicroscope that is like 60-120 zoom and i like that too for 15 bucks RADIOSHACK MICROSCOPE