What are the advantages and disadvantages of buying a low end combination oven versus a high end combination oven?

Disadvantages of buying a low end combination oven is that you might have to replace it more often than buying a high end combination oven. Advantages would be that you might not have to replace it as often. When buying anything of value you should stick to the old saying "you get what you pay for" meaning if you purchase a cheap version of anything it will not be as good as purchasing the most expensive version of the same product.