You bet, I have often bought guns- just because they were a "good deal". But also, because they were "good" guns, and guns that I desired. The only regret I ever had regarding one of these guns- is a Silver & Chrome Browning Hi-Power, .40 cal. I only regret that I later sold it to a friend.
Among some of my 'bargain' acquisitions are a Marlin 1895 GS .45/70 Govt., a Marlin 336 Spikehorn 30-30, a Ruger Vaquero, Birds head Grip .45 LC, a matching Ruger Single-Six, Birds head grip in .32 H&R Mag, an FN Hi-Power in .40 cal. (to replace the Browning), and most recently a Christmas present to my wife- a beautiful (my wife, also) Uberti "Remington" Model 1890 Army/Police SA revolver in .45 LC.
All of these firearms, I probably would not have purchased if it was not for the exceptional bargain price. These 'choices' were not well thought out or even practical, but every one of them I came to treasure and immensely enjoy having and shooting.