$150 without contract, all you get is prepaid plan and comparatively that won't get you decent smart phone to say least. Forget about razr , even the heavy discounter wirefly is selling it for $199 with contract.

Check this link below, this is what you are getting $100-150 range, no contract, smartphones. They're definitely not fancier if you see latest phones selling today.
http://www.ebay.com/sch/i.html?_udlo=100&Contract=Without%2520Contract&LH_ItemCondition=3&_sacat=0&_from=R40&_dmpt=Cell_Phones&_mPrRngCbx=1&_udhi=150&_nkw=unlocked+phone&rt=nc&LH_BIN=1
But if you like it, there are few good phones in the link above. Hope it helps.