In certain areas, they don't want you broadcasting over 5W anyway (I know regulations on radio licenses and such for private users are almost never pursued unless someone files a formal complaint) but in my in-scientific tests, the standard UV-5R with hi-gain antennas actually have a better range than the UV-5RTP with the standard antennas, and you can get the standard UV-5R with the hi-gain antennas for less than the RTP version with the standard (or at least you could when I ordered these).

I have not tried the RTP radios with hi-gain antennas, as they already have enough range for my uses.