Agreed, quality can be a problem, 6and8. I got used to the silence between and during tracks with CDs, and still prefer this state of affairs when listening to vinyl. Not all of the heavyweight vinyl now on sale is quiet, and with the best will in the world a speck of dust can find it's way into the grooves, but these pops and clicks are "characteritics", and enjoyed as such.
I think that most of the vinyl on sale in charity shops haven't been treated well, so have loads of crackles and pops, but more specialist sellers, such as retro and antiques shops, will clean their stock, so it's generally a better bet for quality playback. Re your dilemma, if the original vinyl was on a reasonably heavy disc, and not very flexible, and looked undamaged, then it would probably sound better than a 180g reissue, particularly if the reissue hadn't been sourced from the original source tapes, but from digital copies. And, with modern technology, you can make your own digital copies, if you really want to.
I'm still buying CDs, as not all music is available on vinyl; but perhaps, as used to happen, it'll be issued in multiple formats, as used to happen, but doubt it'll be enough to revive cassettes and 8-track tapes. But, CDs are cheaper and easier to make, and source quality is more easily hidden than for vinyl, but you never know, K-tel may start up in vinyl again?
I also hope that the influx of cheap record players, which won't be able to reproduce the sound properly, and may also damage records, or play anywhere near as well as the cheaper, quality, turntables, don't put too many people off.
And, hopefully, thie vinyl resurgance won't just be another passing fad. And it also mean that more people listen to music more closely, and appreciate it for what it does to us, and what it gives us.