Well with the Axis being a value brand and already priced pretty decently brand new. There hasn't been a ton of depreciation on them. Some are even saying that they may hold their value better than premium brands because the demand for good wakeboats is there and given the choice between a newer value brand and an older premium brand at the same price used, a lot of people will choose the newer value brand than the older premium.
This is kind of like how a lot of people would rather drop $20,000 on a new Hyundai than they'd pay $20,000 on a 7 year old BMW.
Only time will really tell on how much they will drop in the long run, but they are in a pretty good position to not drop a ton.