I know this gets asked all the time by other people, but here I am aswell!! I've got back into animal crossing lately - particularly NL, but also WW, and I was thinking I'd probably also enjoy CF! However, I've always had the same town since release and feel as though I might regret it if I was to restart. But, on the other hand, my town is landscaped awfully and I'm not fond of any of the villagers/the town layout, so I feel like I'd be more inclined to play if I didn't hate the town!

So really I'm asking - people who've had a town save for years, with a good catalogue and savings, but have restarted, do you regret it, or dos it make the game more interesting again?

Now, because there is no wifi to use to save items you might want to keep, I would say don't restart. You probably would regret it since you would lose all DLC you ever had and couldn't get them back. On the other hand, if you don't care about that, and you really are dissatisfied with the layout and your villagers, I'd say go for it! It wasn't so hard for me because the town I had was lost when my old Wii died on me. (Curse you Nintendo for not making the disk the place where everything was stored instead of the Wii!) so I restarted, then got into NL, and left that CF town to wither. Recently I've restarted again, because even without wifi, it's still as much fun as it was before I discovered how to wifi with CF. That came months after I had started to play CF the year it came out. Losing wifi, though, was like a slap in the face from Nintendo.
So, back on track. If nothing is so important in your town that you wouldn't miss it, go for it! I even went so far as to grow weeds long enough to get a Rafflesia in my town! I keep one lone weed to keep it, and water it every day. If you don't, it wilts just like the flowers. Don't know how long I'll decide to keep it, but for flies, it's a super great source since bunches fly around it as long as I don't forget to water it. Any way, I find it interesting as a strange plant in my town. Funny thing, no-one has complained about the smell yet, and I've had it for weeks now!

I had a town since the release. First  off, it was literally full of  scorpions and tarantullas. So much so that you could not leave your house at night without getting bitten or stung. Also the layout was not the best. I really didnt like it. I had a good cataloge and my house was expanded to the max. I hated it.  So I restarted it.  Held out for the station I wanted and house styles. The layout  I have now is my favorite. It took a while to find this town and I dont regret it one bit. Villagers come and go but layout and house style is ultimately what matters.

My very first AC game was Wild World. I was a little girl back then and I'd play around in my town for hours a day. I've had that town for three years. Then I grew older, learnt more about the game (and began to understand English, because I'm Dutch) and didn't like my town at all. I wanted something new and it had to be perfect. So I finally deleted my town and tried to find the perfect layout, fruit and grass in my town. I ended up starting over a hundred times and after months I finally found the perfect layout. I was obsessed with getting every goal completed, as soon as possible. I would time travel for hours to get money to upgrade my house. After that I lost interest in the game, just because I accomplished everything in a few weeks. It's now five years later and I never really play. Once or twice year I load the game and pull out the weeds and talk to villagers. I just want to keep the memories of this town forever and that's why I will never delete this town. Even now that I hate time travelling and I'll never do it again, I can appreciate the choices I made back then. I also kinda regret I deleted the very first town. I would have loved to see what it would be like now.

I wouldn't recommend starting over. Give your town at least one chance. Pull out the weeds and run some errands and see if you can pick it back up. If you still want to reset after a couple days, then do it. It's a waste if you are never playing the game again.

I hope I could help you with this long reply.