I think one of the issues here is that InSync has 3 different user markets who have slightly different attitudes to pricing. From a quick scan read of this thread, I’m guessing that the majority of posters are Linux users who are likely to be more tech savvy that their Windows/Mac counterparts and are also, if I’m anything to go by, price sensitive because of the Linux/freeware mentality (apologies if this isn’t you!). Windows and Mac users are much more used to paying for updates/upgrades. One of the reasons why I moved my company over from Windows to Linux back in 2000 was because the annual upgrade costs for the OS and key bits of software we used was becoming a serious drain on resources.
So why am I saying all this? Because I think, if I’m right, that the Linux posters here might not be a true representation of InSync’s client base. If for example it is a 70/30 split between Windows/Mac and Linux users, then InSync can and probably should charge for upgrades because they will move onto a more sustainable footing even if they lose market share in the Linux world.
I bought InSync because it saved my time for a small outlay. If it would have been an ongoing update fee model, I’d have spent a couple of hours knocking up an rclone script run as a cronjob. I also bought Expandrive years ago for the same reason as I needed to access systems not supported by InSync, but as it’s performance isn’t as great as I would like, I’m now migrating that to rclone!
In conclusion, as a Linux user, I don’t think I’m the prime focus for InSync and I’m OK with that. If existing users are properly grandfathered, that’s a bonus to me. If we are not, I’ll move to an rclone solution but I won’t be blaming InSync nor will I bad mouth them as I understand their rationale.