Heaver grade vinyl vs Standard

The whole idea around 180&200 grams lp's has more to do with the thickness reducing the warp factor than anything else.
I agree with most of the other responses, in most cases they're not any better and alot of times worse than the original recordings.

180 & 200 gm vinyl must be the biggest marketing scam of all time originally started by Mobile Fidelity. Outside CD's of course :-)

I have 1000's of standard 120gm vinyl that sounds wonderful.

the weight or thickness of the vinyl has NOTHING to do with the sound quality of the record. That as most posters have said depends on the quality of the recording and what type of master they have used to press the record.

thickness doesn't matter, but if the cost of old or new records freaks you out, don't get a turntable...or at least don't spend too much on one

In very few cases will a 180 gm, 200 gm reissue ever come close to the sound of a good original pressing. It's even more unusual to beat the original reguardless of thickness. Luckily, many times a good original can be had for 3-5 dollars verses 30-50. You just have to find them and clean them up. Whatever you may think of Tom Port, his Better Records site has opened my eyes to this. Also, Port reccomends reissues on his site that he feels do sound great and that is a very good way to steer clear of expensive disappointments when you do buy heavy vinyl reissues. Norah Jones "Come Away with Me", CSN's 1st, Supertramp "Crime of the Century", Eric Clapton "Unplugged", Joe Cocker "A Little Help From My Friends", Bob Marley "Natty Dread", Nirvana "Never Mind", Miles Davis "Kind of Blue", Sundazed "Freewheelin Bob Dylan" and "Time They Are A Changin" are a few examples of heavy vinyl reissues Port recommends and I have yet to disagree with him. This has been a great help because many reissues are really not that good(Classic's "Aqualung" Cisco's "Aja")

In most cases, originals sound much, much better than reissues. Reissues come in 180-200g and they also come with a lot of problems. 9/10 come in some way defective...warping, unknown marks on them, noisy etc. Now, I look for originals. If I cannot find them then I will go new vinyl. Sad but true