Is it normal for personal care homes to change rates before moving in?

Very new to this process. Husband is in late stages of dementia, but can walk and feed himself. Went to a local personal care home (also has dementia wing.) Tour included a verbal quote of $3,250 a month. I went back 5 days later to get forms to be filled out by the doctor and myself and was quoted $3,500, for a semi-private room. A private room quote was $3,850! I repeatedly mentioned this was for a 30 day respite care. If it worked out would consider keeping my husband in the facility. I put $1,000 down to hold a room once one became available. Now, I am wondering if this is what I should be doing and if this home is honest or is this typical. I have been given nothing to sign, only a brochure outlining the facility. No rates in writing either. Perhaps it is me. Am I getting cold feet? What should I do at this point? Husband is home with me but I need a break after 10 years of caregiving by myself. I'm a nervous wreck. Thank you for any help or advice.