Used ski boots

was just wondering if any of you have ever bought used ski boots and had a good experience buying used. i need boots badly, mine are literally cracked in half.... and boots are sooo spend y new. so lets say i find a boot thats been used one season or so, if they in my size and not ruined and are a good deal would you guys say go for it ? just a question, ive botton used skis , bindings, but never boots. any info / experience with buying used would be greatly appreciated as i simply cant afford new shit this year.