If you require WiFi-to-WiFi repeating/bridging; as a separate (sub-)network;
consider a using DD-WRT firmware on a Linksys WRT54GL. It finds signals
that my laptop/iPad cannot receive ... and makes them usable.
There is a cottage industry selling these pre-configured appliances on eBay
for $40-$80.
re: Wired:WiFi ... hotels that use Nomadix as their ISP will indeed block most
travel routers.