Neil Young LP box vol. 5-8 soon available on individual LP

My patience paid off, as On The Beach, Tonight's the Night, Zuma, and Time Fades Away have an early September street date. The Box is around $150, and these new LP's are $25.00 each. I believe the Box was mastered by Bernie Grundman, and pressed at PALLAS. I have heard very good reports about the quality of the remastering, and vinyl. No surprise the remastering is excellent, since BG did them. So what gives with being able to buy all 4 for $100, while the box was $150. They are not saying much, other than the new LP's are 140 grams, while the box LP's  are 180 grams. Of course you get the nice box, but many like myself, may not want all 4 LP's. If anyone knows any more detail, please chime in.