see recent thread
IMHO, you will not hear a difference in sound from a $1500 streamer vs. what you already have (or even vs. a $6500 streamer). Think about what a streamer is: a relatively low-powered computer that moves data packets from a source to a DAC, performing no conversions or changes to the data stream. Differences among streamers are limited to jitter and other types of noise, which can be measured relatively easily. Streamers are a mature product now, having been around for over 25 years. So well-engineered streamers that cost less than $1000 have jitter and other noise measurements that are virtually identical to products that cost over $30k!
But there are some here that, contrary to science, measurements, and the listening experience of others like me, believe spending $5k, $10k, or even more(!) can be justified. Now to be clear, they cite their own listening experiences which they believe perhap even more than I believe in my own. So good luck as you figure this out. My advice is to with your instinct and focus on your DAC.