V7 or V9?

[fratres]

Need an advice: I´ve got my V7 with a Magic 3, and as I don´t like the chip any longer I got a used MI. Now I bought a used V9 and have two options: let the MI be installed in the V9 (with LA-Fix of course) and sell my chipped V7, or let the chips in my V7 be exchanged (only 10 Euro cheaper) and sell the V9. I suppose both lasers are working properly, shouldn´t be a difference there. So what´s your advice, keep V7 or keep V9 (both PAL)? Are the V9 lasers with a LA-Fix as good as the V7 ones, and are there any other decission issues (besides fan noise)? Thanks!