Don't forget MoCA (ethernet over standard coaxial cable--basically in-home DOCSIS). In my experience both more reliable and more resilient than HomePlug, which is very susceptible to interference from appliances--most notably microwave ovens. Nothing worse than having your movie stop and (inevitably) your streamer go wonky just because you are making popcorn.
'Course, the problem is that there are VERY few MoCA products out there. But you can still get brand new Verizon FIOS routers (Actiontec MI424WR) which act as MoCA bridges for $30'ish apiece on Ebay. ALSO on the negative side they only work where there is a cable outlet. But still, a pretty cheap (cheaper than comparable HomePlug solutions) and easy (ish) solution to obtain 100+ MB/s in multiple rooms without Cat 6.
FWIW, a pair Netgear MCAB1001's (dedicated MoCA bridges) can also be had for around $140 on the 'bay. Likely a better "set-it-and-forget-it"--and probably more energy efficient--solution than the MI424WR's.
That said, there is a lot of elegance in these little plug-and-play (literally) HomePlug things. If they had a cool USB charging outlet, then they'd be even better. Actually, I wonder why they didn't make the AV500+ with it's pass-through power outlet the standard model. Much more practical for seemingly just a few cents more in actual production costs.
Anyway, I'll probably try a pair of these out when they are released, assuming they aren't outrageously expensive.