Most marketing campaigns you see regarding wireless internet are likely a bit overblown. In the end, it's a lot like having a car: it's almost always better to have one than not to have one, unless of course you have a lemon. To be fair, there really isn't a "lemon" equivalent when it comes to internet connections. Nevertheless, the fact remains that having a high-quality wireless broadband option is much better than not having one at all. Although there is a some competition out there for your business, you should just make your decision and start enjoying something as soon as you can.
Of course there's a little bit more to the matter than that. There are differences in service, with some being much better than others. Take Wifi as the first example. Although many people would argue that it's not fair to place it in the wireless internet category, it actually does have its place. Wander around town with your laptop or netbook and you're bound to find a few Wifi hotspots. Coffee shops and book stores will be your best bets. While you're within a few hundred meters of them and you've paid the price of admission, you'll be able to enjoy a wireless browsing experience. Since more and more places are throwing up Wifi networks, it's somewhat reasonable to expect a decent amount of coverage throughout your city.
Ultimately though, Wifi does not have enough coverage area to compete with the likes of 3G, which is a cellular phone network that can be used for data transfer as well. Although it has much greater range than Wifi, it's usually considerably slower. Fortunately, 4G came along and the landscape changed dramatically. It essentially has all the power of Wifi with all the range of 3G. The main issue is that there are a number of competing standards out there. The newest one is known as Long Term Evolution or LTE and is just starting to gain traction. It has both good and bad attributes, with one good attribute being that it's expected to be impressively fast in the future and one bad one being that it's almost too new. It may be some time before the service truly proves itself. Its competitor is Wimax, which has been around longer and probably enjoys more widespread coverage. Although ad campaigns will lead you to believe that one is better than the other, the reality is that they're both more or less the same. Both will offer highly reliable broadband connections all throughout your city, if they're available of course. Of the two, it's far more likely that LTE won't be available.
In the end, each one has their own place in the wireless market. If your city only has Wimax, you should sign up for that. If your city has only LTE, you should sign up for that then. If your city has both, then you really can't go wrong. If your city has neither, then you should start making a list of places that offer Wifi or consider 3G. As you can see, the marketing that bashes either one of those technologies is just going a little too far.