Ignore the negative hype on the internet...or sometimes on this forum. Eldar are a fun army to play. Space marines are my other army...equally fun and they play very differently.

Another option is the newly updated forgeworld corsair eldar. They provide more flexibility (e.g. corsair bikes can be configured for assault or mix vs Eldar Craftworlds codex giving standard bikes little/no capability/options in assault, thus encouraging heavy weapon spam. Ignore the negative hype online on corsairs...most people haven't seen the book and online forums are rife with incorrect rules posted.

In a nutshell play what you want. Yeah, be cognizant that some unit combinations are more suitable for tournaments. But don't feel steered away from an army.