The only people doing the locking are forum enthusiasts. Nobody is forcing you do so. Its a false equivalence argument.
So again for my mate who I did a budget build,if I found a Nvidia card,I should have ignored that monitor I asked him to get,since it had FreeSync. So basically I should have got a WORSE monitor for his budget gaming rig instead??
Really??
Edit!!
So if Nvidia suddenly dropped the GTX1080TI down to £450,even if you had a FreeSync monitor would that means you go "no" I won't bother.
Even adaptive sync is not a magic panacea for lack of GPU grunt - it helps,but if you throw enough GPU grunt at a game,beyond a certain level adaptive sync won't save you.
If the person isn't interested in using the tech, the choice of the GPU is irrelevant, which means you do not consider yourself locked in because you aren't bothered (like myself) what you friend does is irrelevant, we are talking about people who said "they bought X gpu because they considered themselves to have little choice because they wanted to use the sync tech. Not the same a person saying I only want to invest this much into a monitor because if you are on a budget you can't be picky, the choice is irrelevant when you are constraining your self to a small budget you are automatically limiting your choices, this isn't what we are talking about, now down the line if he "forces" himself to buy an AMD (that could have a bad perf/price ratio compared to the competition) because he wants to use his freesync (that he "only" invested 150£ in) that is an entirely different problem, and is definitely a problem, and would have been exactly the same problem if he had a gsync monitor.
And in your friends case the 570 was a better choice than a 1060 (if the 570 was priced sensibly of course) on the perf/price ratio, but now if we are talking about a vega 64 vs 1080, no, no one should be buying a 64 over a 1080 just because they have freesync and that is where the problem arises (and where AMDs marketing did well) :
People who want to use a sync tech are locked in to a brand there are no 2 ways around it, and there has been enough customer feedback be it on AMDs of Nvidia's side that proves that, now that is all fine and dandy being locked in if the brand is brining out good solutions priced correctly and that make sense, but when they aren't well these are the type of discussions that start
Euh Nvidia will not drop the price of a Ti down to 450 so that question is irrelevant because exagerated, because it will not happen, that being said people have bought a 64 instead of a 1080 because they had freesync so I imagine people would also buy a 64 instead of a1080ti because they have freesync, heck people forked out 50£ less than a Ti (+ a new PSU)for a 64 because they had freesync. But yes I would buy a 1080ti at 450£ even if I had a freesync monitor but i'm part of those people who purchase depending on a sync tech because I don't care for the tech.