As mentioned before, you have to decide what your requirements are, but what certainly will happen after some time (and at a point where you really became addicted to the idea of 3D printing) is:
-you will want a larger printing volume
-you will constantly look for a solution for avoiding support structures (with clever design) or printing them (which is more difficult than it sounds), depending on geometry using a dissolveable print material. This may require a second extruder.
Buying cheap and small is the worst mistake one can make regarding 3D printing.
Another thing is, without some means for designing your parts, the whole printing stuff does not make any sense.
Today a nice selection of free or open tools are available to choose from: FreeCAD, Fusion 360, DesignSpark Mechanical (my favourite), etc.
Regarding the remarks about PLA melting, this is not the case anymore. A wide range of newer materials are now available as valid alternative to ABS (e.g. HT PLA). I just yesterday visited the formnext fair in Frankfurt and the range of materials offered today is overwhelming.