I like everything about Lego the product. Being a technophobe and model builder I have a preference for all things techy. Tron is a favourite film and when Lego bought out the bikes from the film, I had to have them. And still on the techy theme, as the lightailing option was available, again I had to have it as I saw that it would bring just much more to enhanced the kit. I bought the two at the same time as it seemed as if I would have to take parts of the kit apart to fit the extras from Tron Ideas. I hate breaking Lego down, but would have bought a complete new set. There are a few bits that are redundent for completion but, hey ho!