There is not much difference. Karamarzu delivered the first batch of goods, and then the piano changed hands in 1969, so until the early 1980s, these pianos were not expensive, about 1000 yuan, and some were in their early 2000s, but by 1969, they generally jumped to more than 5000. Since 1990, the quality of these pianos has been improved and the price is not expensive, but the panels are not very beautiful. The most expensive batch of pianos was made in 2000-03, and now the second-hand pianos cost 8000+. After a while, Gibson's mid-to high-end models were quite satisfactory and began to take the patent route. After 2008, many models have integrated more and more functions, and the latest lespaul std can cut single and double. The timbre is also good.
As long as the piano head has been professionally repaired, it is not a big problem, because Gibson's bare piano head is made of three pieces of wood, and the batch before 90 is five pieces of wood. As long as it is glued, it will not be too bad. I accidentally fell two years ago, and then I found an old shop to repair it, and there was no problem. It is running well now. The repaired lespaul std is 60-65% of the unrepaired price. On Ebay, the one that has not been repaired is probably 1600-2000, and the one that has been repaired is generally 1000- 1300.