>>266971493
>it doesn't look like the next 3 years or so we'll be even using it and by that time I'll probably be upgrading again
Sounds like you already have your answer. Even if something does use it before then, I doubt it'd be mandatory.
>Torn between the 5700 XT and the 2070 Super right now
My 5700 XT has been working fine with my Index [spoiler]since they fixed the driver issues at launch[/spoiler]. The 2070 Super was tempting, but I didn't think it was fast enough for the extra money.