I think the Taiwan made Chateau branded sopranos might fit your requirement. They have different level of instruments (student, intermediate, pro) at different price points. As long as they are setup well, it will probably be as serviceable as a Jupiter. You may also be able to find a used Yamaha YSS-475 around $1000 if you look hard enough. You may have to settle for one that is well used, but by all accounts, it should play fantastic. Once again, as long as it is setup well.