I have no idea what a good CTR would be for the fields you mentioned

You should start the campaigns, split test different ads with different images, headlines, CTAs etc for your remarketing campaigns and keep improving your CTRs

Is in your opinion the Remarketing a good solution, in terms of increaseing the PPC budget by a reasonable profit margin for these 4 market fields (a, b, c, d )?

if the website is set up correctly, then remarketing can work well for all of these. if it's leather bags and they added the bag to the checkout but didn't proceed, then you can target these people specifically and lure them back to the website to finish the transaction.

I assume with automotive the objective is to get their contact details in which case remarketing will work well

Which kind of PPC (other than AdWords) would you use for them?

well i don't know the specifics of the business so it's difficult to say

for online printing, if it involves printing photos, then fb marketing can work well. leather bags could also work well on fb

beds and mattresses -- you could try yahoo & bing advertising as you would probably get lower cost/click than u would on adwords

Monthly subscription indeed!

Customer value is around $190 at the moment and remarketing brings them in at around $19 at last count

What product/service are you thinking of using remarketing for?

Well 100 impressions is nothing. You need a lot more impressions to get some clicks. As John has suggested, try increasing your bids.

A retargeting campaign can certainly be successful with a compelling ad even if the small audience size is small

I have a client who wanted to say thank you to a list of 80 high value customers. So I cookied these customers and displayed thank you images as part of the remarketing campaign which got great feedback

I run an education product.

I'm getting around 0.81% on the remarketing campaign over the last 30 days but conversion rates are crazy -- I'm getting triple the normal conversion rates.

I don't know if the CTR is a good one but compared to normal display campaigns where I get around 0.20-0.27%, it's a much higher CTR than what I usually get

http://www.businessbolts.com/what-is-dofollow-what-is-nofollow.html

I run an education product.

I'm getting around 0.81% on the remarketing campaign over the last 30 days but conversion rates are crazy -- I'm getting triple the normal conversion rates.

I don't know if the CTR is a good one but compared to normal display campaigns where I get around 0.20-0.27%, it's a much higher CTR than what I usually get

Well 100 impressions is nothing. You need a lot more impressions to get some clicks. As John has suggested, try increasing your bids.

A retargeting campaign can certainly be successful with a compelling ad even if the small audience size is small

I have a client who wanted to say thank you to a list of 80 high value customers. So I cookied these customers and displayed thank you images as part of the remarketing campaign which got great feedback