Open ticket bus through Vietnam

I bought a 16 USD ticket bus to go up north in Saigon. So good! Actually, I think it's the cheapest and easiest way to move around if you don't have much time or if you are afraid like me of driving a motorbike. My ticket allowed me to go from Saigon to Dalat, Nha Trang, Hoi An, Hue and Hanoi. In all these stops you can stay as long as you want and then book the next bus for the date you want. For example in Dalat I stayed for 4 days but in Nha Trang only for a night. Dalat is a nice town because it is surrounded by mountains and at night it's chilly and there are many walks you can do around the town. The day before I left it was the start of the Flower Festival and the town was full of Vietnamese tourists. A lot of people come from Saigon to spend weekends there. The people are nice and friendly and the town is a bit "tacky", a lot of Vietnamese honeymooners go there and there is many attractions for the them like "the love valley", "Cam Ly" waterfall, which is a nice waterfall, but with Vietnamese men dressed as cowboys, and statues of animals like giant rabbits or crocodiles, a bit like Disneyland but a cheap version. In the middle of the city there is a lake and it's got these boats shaped like swans, well, it is a funny funny town. At night people like to go out and drink hot soy milk from street vendors, it is all so naif but cute, hehe.
Nha Trang is just a beach town, not much else to see apart a pagoda with a huge buddha on top. The market was good too. I love visiting the local markets in every town I go in Asia, so many food I have never seen before: fruits, vegetables, meat, fish, everything so exotic. In Nha Trang I ran into a really crazy lady who wanted me to buy some souvenirs but I didn't want to, and she yelled at me: ladyyyyyyyy, you buyyyy meeeeeeeee, cheaapppppppp, ladyyyyyyyyyyyy and her face was SOOO angry, I was scared! but when I left the market I was in stitches, she was hilarious. In the evening, by the beach there was also the funniest thing I've seen in Vietnam. There was a show, a military show, with militar people dancing and jumping like a tacky ballet, songs about Ho Chi Minh and Vietnam, can you imagine a coronel with all the stars in his green uniform singing karaoke with three sailors in the background pretending there were playing guitar? Seriously, it was sooo bad and soooo good so strange, I didn't know what to think, it was like kids playing in school, except that they were adults! and army people!! so strange!!!!
Hoi An was just stunning. The most beautiful town I've seen in Vietnam, but of course the charm was broken by all the shops, every single house was a shop for the tourists, so when the town was more beautiful was at night when everything was closed down. Little yellow houses with wooden windows by the river with lots of Chinese lamps in different colours, so pretty. I met an old man there who showed me his pottery collection, things that he had found in the river, also I met a young man, a boat man, although I didn't take a boat ride we used to meet in the coffee shop by the river and he was just happy to talk about his wife and kids. Another day I met a "lady boy" who was a taylor and who had better nails than me! brrrrr
Hue was a bit of a disapointment, not because it was ugly but because it was huge! and of course you have to take tours and pay for every monument you want to visit, and I am so fed up with these tours, I try to keep away from them. Sometimes it looks as they just put a show for the tourist and that what you see is not real, I don't know... it's just my impression. I prefer just to walk around and meeting local people...