Ok guys, geez, calm down
We all love lotuses, some of us love modding them more than others, can't we all just get along
I think the experiences I've seen still stand: some people would actually pay less for modded cars (concerns about warranty, quality of installation, etc...), whereas others who were planning to spend a lot modding their cars anyway, can see paying a bit extra for a modded car to be a great deal. It all depends, and it's all about finding the right buyer. I know I won't get anywhere near full return on my mods (knew that the day I started doing it), but that someone is certainly gonna get a great car for a great price!!
PS: For those wondering why I've kept the engine and suspension stock, I don't have to worry about voiding the warranty, and I've always found the performance and handling of these cars to be outstanding. (Especially for a car that isn't tracked!)