The advantage of the JetStream it's also fanless. Price has gone up to $308, though.If you want cheap and new ....
JetStream 24-Port Gigabit Stackable Smart Switch with 4 10GE SFP+ Slots - TP-Link
$305 on amazon
Similar price used enterprise switch that's popular is the Cisco nexus 3048
Cisco Nexus 3048 Switch Data Sheet
Really need more info for what you want but there is a couple of threads here like 10g under $550 thread that's worth a read.