I honestly don't know what to say.
Half feel like going out into the back garden lighting a bonfire and throwing my very expensive Terminator collection on to it.
Just because the later sequels are rubbish, it doesn't mean the first two aren't still good films. It's the Hollywood way to keep making the cash-ins until they are crap enough that it kills off the franchise. You've just got to remember that the reason they want to keep making sequels or reboots, is because the first one or two were so good. Later, crappy versions doesn't take away from that, so you might as well enjoy the good ones and ignore the crap ones.