I consider anything under $500 low end LOL. Up to about $2,000 is mid range.

I almost got into boas but decided to get into dwarf and super dwarf retics instead. I was especially looking at the 'lipstick' sunglow boas. It's actually an Albino (recessive) + Hypo (co-dominant). Not really high end, you can pick them up for $500, but still a really cool snake:



Boas can get pretty big, on par with a dwarf retic: