Analog Lp

As you said your records are pre-1979, and this is true analog recodrings. It was the era when mastering and pressing was on the highest level, Japanese pressing of the same releases normally even better. Listen to your favorite music just like it was recorded, mastered and approved by the artists when it came out on vinyl. Very few reissues can sound better than this, if you don’t want to hear something overcompressed, digitally remastered today by strangers (not related to the band) and reissued by someone who just bought copyright. Rember, musicians from the 60’s - 70’s era are old today and they are happy if someone reissue their music in any format, they don’t care much and can’t control the whole process anyway. There is a huge difference between audiophile reissues and normal reissues. 180g press is not an indication of the better quality at all. But even if an audiophile reissue is from the master tape, don’t forget that tape is over 40 y.o. today (not fresh). 
Most of my collection is music from the 70’s (original vinyl). I don’t like the quality of reissues sonically. 

Contrary to what the youngster Chakster says, before 1979 Japanese pressings were hardly looked upon as top quality, if indeed Japanese pressings were even imported (to the US) in those days. In those days, the best pressings were often European in origin, e.g., ECM, EMI, Decca, and others I cannot conjure up, including some excellent French labels, and in the US, we had Verve, Pablo, Columbia, etc.

@lewm I'm buying Japanese LPs from Japan nowadays. I already have American original pressing of my favorite 70's stuff. Japanese pressing is superior to nearly all American pressings. There was a very nice article about it in Wax Poetics magazine. In the 70's Japanese releases of American music were made from the master tapes on virgin vinyl by companies like Victor, CBS, Toshiba, Polydor K.K. etc. Those are giants of the industry as you know. They are absolutely top quality and better than European releases.  

I'm interested mainly in Jazz, Funk, Soul, Latin and Soudtracks from the 70's, so I know what i'm talking about when it comes to this music. 

There is nothing interesting for me on EMI, ECM, Pablo ... from your list, probably it's different genre of music. But if you what to try Japanese pressing of these labels then look at SAL'74 here ( Mainly for Japanese Polydor K.K. manufactured reissues of Verve Records, Pablo and Polydor labels ). 

I'm aware that German pressing was great, can't say it about French pressings, but Japanese pressing from the 70's is the best in my opinion. Some American pressings also great! But sometimes American originals cost 10 times more than Japanese pressing of the same release from the same era. 

 

Actually I’m not talking about re-issues. I’m talking about ORIGINAL JAPANESE issues made same year when record released in USA in the 70’s. If Polydor made records in the USA then Japanese Polydor K.K. pressed same release in Japan (from the same mastertape). 
Japanese reissues made 20 years later are nearly all digital, this is another story (I don’t buy reissues).