In the greater picture of things, it's not all that expensive, and it's likely to hold, or increase, the value. People also pay 12k+ for Moore Bettah ukuleles. Would I pay that or 5k for a Martin? No, because I'm not comfortable spending that kind of money on a single ukulele. But that is just preference. If I made three times as much as I do per year, I may have other preferences, though I also feel that the more expensive and thus irreplaceable an instrument is, the more I'm intimidated by it and the less likely to play it.
My limit is $1500, and even that is probably unreasonable (for me) and not something I'd do multiple times per year. I'm actually at a point where I'm fairly satisfied with what I have. There's also the aspect diminishing returns. A $5000 instrument isn't five times better sounding than a $1000. The higher you get, the less return in objective gain there is. Perception is probably a different matter, though. I don't even presume to hear the difference between a $300 instrument and a $1500 one in the hands of a skilled player. People like Corey make $100 ukuleles sound divine.
In the end, the only thing that matters is whether it makes you happy.
