So long as you understand their limitations (which, if you are viewing them as toys, it sounds like you do), there is nothing wrong with single-core Atom-based netbooks. I have a "real" ultraportable laptop (elitebook 2530P) as well as a bona-fide netbook (Dell Mini 9) and find that both have a purpose. The netbook is a great throw-around, quick-search, pack-up-and-go device. With the proper tweaks (the biggest one being installation of flashfire to compensate for the poor SSD performance), it is perfectly suitable for browsing and typing the occasional document. I paid just over $200 for mine, and at that price, theft and damage aren't things I stress about.
IMO, if you can find a model that suits you for less than $250, a netbook is tough to beat. Once you go over $300, and/or get into the 11" + range, CULV-based ultraportables need to be considered.