I'm sorry but I have to disagree you with that one.
Not all hardware are made the same and none of them should have to be rebooted once a week.
There are a number of different amount of routers on the market, ranging from cheap and shitty, moderately priced and fairly good, or highly expensive and is ridiculously awesome. They also come with different types of standards (Wireless G/Wireless N, or the new Wireless AC), some of which you may or may not care about.
If you just want to buy a simple and reliable router (for the sole purpose of providing yourself with wireless internet), I would recommend something like the classic Linksys WRT54GL or the Asus RT-N56U, both of which are priced around $50-$100.
Now, if you wanted your router to do more things like giving you the ability to stream video files over a network, then I would suggest putting in some more money towards some more powerful hardware.