$50 would be roughly all-in for the SFP+ NIC, two optics and a generous length of multi-mode fiber. I just did this, and here's the breakdown of my costs from eBay:
1x Juniper EX3300-24p - $75
7x SFP+ optics - $7/each
3x Intel X520-DA2 NIC - $20/each
4x 3 meter OM3 LC-LC fiber - $6/each
1x 30 meter OM3 LC-LC fiber - $24
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Total: $232
The EX3300-24p has 24x 1gb copper ports with PoE+ on them, and 4x SFP+ ports. If you need more SFP+ ports you'll want to find a different switch - but for a small multi-use home network the EX3300-24p nicely matched my requirements.
Mikrotik switches/products are pretty intriguing. Do you have any experience with that model? I'm interested in how stable it is and if the known bugs are anything to be concerned about.
Nope, but if you saw/used one Mikrotik then you saw them all.
Personally I have a love/hate relationship with MT, with a little love and a lot of hate, but at their price range they are unbeatable and works 99% of time.
1x Juniper EX3300-24p - $75
7x SFP+ optics - $7/each
3x Intel X520-DA2 NIC - $20/each
4x 3 meter OM3 LC-LC fiber - $6/each
1x 30 meter OM3 LC-LC fiber - $24
-----
Total: $232
The EX3300-24p has 24x 1gb copper ports with PoE+ on them, and 4x SFP+ ports. If you need more SFP+ ports you'll want to find a different switch - but for a small multi-use home network the EX3300-24p nicely matched my requirements.