That's your view buddy and not a view I share. I'm not after an IS-F or an IS350. If i was, I would have bought one. I'm not modding my IS250 because I want it to look like an IS-F, if that was the case I would have got the full IS-F bodykit. I liked the rear-end of the IS-F when it came out and that's when and why I only did the rear-end conversion back then. I've owned my IS250 since it was 12 months old, I am happy with it and have been spending money on it gradually, nothing that kills the bank. I also have a 2013 RX450h.
I mod for my own pleasure, not for resale value. A car is always depreciating, unless it's a classic or antique. I didn't buy it back in 2007 with the thought of selling it in mind. The pleasure and satisfaction of the comments I get on the road wherever I go is way worth the effort and money. For me modding is not only creating something to my own taste but also a huge learning platform. I cannot emphasize enough how much knowledge i've gained from modding. This in itself is invaluable and only experience can make you better at what you do (practice makes perfect). I haven't just been modding my Lexus, past few years i've been busy working with "RenaultSport" cars and have been selling a custom made product by me to customers worldwide (mainly Australia, Singapore, Spain, France, Malaysia and UK) Through this I made a profit in the region of £35,000 in a span of 8 months. I see that as an achievement and would not have been possible without the continuous trial and errors of modding.
Well said my friend