Detective Comics #29 worth

The Detective Comics #29 (1939) is the original and most valuable version of the issue, with a used resale value of $14,167.47 [1]. This is due to its historical significance as the debut issue of Batman. The other items on the list are reprints or later editions, such as the Detective Comics #29 (2014), which is worth only $1.92 [2], and other issues like #291, #292, etc., which range from $44 to $68 depending on the year and condition.

If you have the 1939 original, it's a rare and valuable collectible. For the later editions, their value is much lower. Always verify the condition and authenticity of the comic before selling or appraising it.