I've had the Wii for about 2 years now and had the chip installed a year ago. In my opinion, it's the best thing I could have ever done. It has saved me a lot of money but not because of pirating software.
I have purchased Metriod, Trauma Center (both), Excite Truck, SMG, MOHH2 (After tring it ) and RE: Umbrella Cronicles. Luckly for me, I did a lot of research prior to purchasing them and am very satisfied with those titles. However, I did want more in depth sports games and this is where the chip saved me so much money... to me most of the games I've downloaded aren't worth the disc they're burnt on. However, if there's a game I really like (e.g MOHH2) then I'll purchase it (I like having the case and paperwork).
I was wondering who has a chip and do you use it just for the purpose of pirating and do you purchase the games you like.