Litecoin was never interesting. It was an undifferentiated clone of Bitcoin, with the exception of CPU and later GPU mining. People may have liked that because they felt Bitcoin was heading in a bad direction, but even that certainly didn't make it interesting. It was just a throwback to what had already been done by Bitcoin at each stage (and still). Been there done that is never interesting.

If anything Bitcoin moving forward to GPU and ASIC mining was more interesting. Maybe interesting in a bad way (opinions differ of course), but still interesting.