I usually only beetle hunt if I buy a dlc from someone or something else like that. Other than that I usually just sell things around my own town or sell turnips. xD;
I love beetle hunting, it makes me more than 100,000 a night. Especially if you get lucky and catch a bunch of golden stags. I have never messed with turnips before because I didn't really get how they worked. I didn't want to waste my money.
I often missed the chance to purchase Turnips- most of my Bells are from Beetles. A healthy mix of both methods can be a solid plan- if you don't play that much, try to focus on the Stalk Market w/ Turnips.
I Beetle Hunt, only because it's simpler. I'm thinking about trying Turnips soon, though, so I can just pay off my house around this time and then focus on other things
I make money from beetles simply because too many people hound the ones with good turnip prices, so I don't want to add to that. I try to make some money from turnips in my own town for the badge, though. Will be very slow going.
Both. My town has never had the insanely high bell amounts for turnips yet as far as I know (though due to work I miss the AM times M-F). I did get lucky and was able to visit someone else's town this week to sell my turnips though.
I've turned my back on turnips because it's such a hassle to have to check prices at specific times every day. Beetle hunting is a quick and dirty way of making money, and you can do it whenever. Skip a day, no problem. Beetle hunting is a bird in the hand.
The only time I ever bought turnips, I forgot that I had them and accidentally time travelled forward a few hours. /facepalm.
So it's pretty much just beetle hunting for me, for making a profit at least. might settle down and turnip-trade sometime just for the badges.