Hmm.. I understand the customer 'perspective' in buying the cheaper option.
But:
Vstep patches come out instantly when "released", whilst Steam user's have to wait some hours when Steam admins 'release' it at their end (different timezones from VSTEP in Rotterdam and Steam in the USA)
Oh and how long did Steam users had to wait for the Ferry DLC again?
You talk about PC rigs, as you can see in my signature my PC specs, I get very good FPS and visuals, and it does NOT crash. So if your 'rig' is that new and 'top gear' perhaps it's your specification that needs work on, or system maintenance.
However, if I were you, I would go with the VSTEP version, and many members would too! Less hassle