Contrary to early expectations, recent studies have shown near-perfect adherence to HIV antiretrovirals in sub-Saharan Africa We conducted qualitative interviews with patients purchasing low-cost, generic antiretroviral therapy to better understand the social dynamics underlying these findings. We found that concerns for family well-being motivate adherence, yet, the financial sacrifices necessary to secure therapy may paradoxically undermine family welfare. We suggest that missed doses may be more due to a failure to access medication rather than a failure to adhere to medications, and that structural rather than behavioral interventions may be most useful to insure optimal treatment response.