$50.00 is a good price, its a solid product. What kind of prop? If its any of the Mexican vet props I say its too much b/c Brovel's t50 is only 1,000mg bottle (20cc) and its T100 (with the enanthate vs propionate question going on forever I wouldnt buy it) and Loefflers 250mg "Testoprop" product, none of the choices seem appealing. Also consider this , Tornels T200 goes for $15-$20 in Mexico. T50 goes for $7-$9, T100 is about $10 and Loefflers testoprop sellls for about $20.
If anything they all (except the Loeffler Testoprop) should sell for LESS than the Tornel T200