I'm repeating myself here but it took me along time to get the message so I'll bet others will take just as long.

Once you've gone through a few (4 for me)inferior lighting systems (Niterider was one of the ones I used), you will have spent the same amount of money that one Lupine system costs and it will not fail you. So yes Lupine costs a lot, but it will be the only system you'll ever need.