so i have a gavilan BFF XS without wheels and have traveled no charge for ongoing 7 trips now round trip. Although i wanted the wheels version i didn't want to pay the 100$ premium. The 7 trips have been made fine, but for sure wheels would have made any of those trips exponentially better going to trains, running to flights, or even just getting to the rental car.
bought some casters 1.5" from amazon for like 15$ and i'ma jerry rig some plates for this thing. pretty stoked to have wheels soon
https://images-na.ssl-images-amazon.com/images/I/51af51jn4BL._SL1100_.jpg