What you need to also consider is will you get your money back after purchasing a $1000 tool that "might" only work for some of what you'll ever actually need. An independant shop that does alot of Volvo repairs might but I doubt you'll spend that much on diagnostic labor over the few years you're likely to keep that car (unless you're like me and keep already old cars another 10-15 yrs?). If you then bought a newer car years later, you might then find your $1000 tool has become useless, obsolete for your newer car as the technology's changing THAT fast, here today/gone tomorrow.

I admire one's desire to be able to do their own auto diagnostics but if I owned a newer Volvo and quit my dealershop job, I too would probably just bite the bullet and pay diagnostic labor for things requiring a scan tool or Vadis cart rather than try costly scan tools that I might find to be very limited after the purchase. I'd also have to seriously research just how good that tool is and what that company will do if you later discover it's not as usefull as you had hoped for (IE: return policy?).