What am I missing out on if I get this switch instead of the XS708T? Will it hinder me down the road?
The XS708e has one SFP+ port shared with Port 8 10G-BaseT so you can use one or the other, the XS708T has two SFP+ ports shared with 10G-BaseT Ports 7 & 8 respectively, again. you can only use one or the other for those specific ports.
I have the XS708e and it works very well in my lab and the single SFP+ isn't hindering me because my core switch has 4 x SFP+ ports, well 3 because that's how i'm connecting the two. Really the only thing that could hinder you is if you require more SFP+ ports down the road and 10G-BaseT NICs are more expensive than SFP+ based NICs.
BTW...this is a great price for this switch when you look at the comparable. I had the Ubiquiti and IMHO, not ready for Primetime. The only thing I wish this switch had was SNMP but more for Nutanix Network Visualation capability to monitor traffic and ports.
