I think price is a poor reason for buying a particular engine, the difference between most engines is about 30$-50$ not that much $$ for reliability and performance.
you can get a OS46 for 100$ from tower with there discount A good price for a great engine that will out live most people.
settling for something you might regret buying because it was the deal of the day, your better off saving the extra couple of $$ and get the best quality there is.
there's such a small difference in the actual money spent VS. the quality of the item engine/radio/airplane.
I would rather do without somthing so that I could save some more cash and get the best rather than a fair quality item that may or may not give me the reliability that I want.
there is nothing worse than going to the field and toiling with a engine or plane and not flying for me.