You're absolutely right. They are trying to prove something in some cases. The problem is that sometimes you want to try new things. You have people so stuck in their ways and close-minded the first thing they say is "you can't." Fortunately, we growers are some stubborn sumbitches - the reason for bumping heads on new ideas lol. So, when guys set out to prove something, they do it and then gotta rub it in just a little LOL. Now, we're using CFLs and T5s. Same thing with LEDs. The pics up there came from a post about a guy asking about Cold Cathode Flourescent Tubes.
Check it out
Can you grow with cold cathode computer lighting? - International Cannagraphic Magazine Forums
Fortunately, there isn't a whole lot of arguing about it. The OP was asking because his friend was already using CCFLs lol.
Hey, all_toked_up. Just to confuse you more about your lighting decisions, you could try out CCFLs too LOL
Also, I kind of agree with
Stoneric. It may be worth it to spend the extra because chances are, you'll have those lights for a long time. However, if you just don't have that kind of money or not ready to risk so much early on, then do you what you gotta do.