Help The New Guy Pick an Optic?

[Robinhood]

Look for a used optic of known quality on the forums

[Justin.D]

Look for a used optic of known quality on the forums

I have zero issue going used, but what products would you recommend?

Some additional considerations

ARGOS BTR 6-24x50 FFP $370

http://usaoptics.net/214060.html

Seems cheap for what your getting, but people are raving about them

ARGOS BTR 8-34x56 FFP

http://usaoptics.net/214065.html

I would actually be down to suffer the weight to run something with this level of magnification, but the price point concerns me (seems to good to be true).