If you can it would be helpful to have the questions that Dabac asked above answered.
If you're wondering about road tires in the 700c format there are a lot of good tires on the market today without needing to spend $40 or more for one! If you look for closeout sales you can get $55 to $65 tires for less than $35, just find a good deal and read the reviews, if the reviews are plenty and favorable then buy the tire. I stay away from Conti road tires but I like their MTB tires. Conti road tires are too fragile for my taste and they cost more even with sales prices that are rarely slashed more than maybe 15%. I recently bought a pair of Hutchinson Intensive long distance tires that retailed for over $65 each for just $32 each, I have a set of Vittoria Rubino pro Slicks that sell locally for $59 I got for $29, and just 2 weeks ago I got a very rare sale on Specialized (who like Continental has fixed pricing) Roubaix Pro tires for $40 for one and the second was free so $20 each (this sale is still going on at any LBS that sells Specialized stuff). Most of my tire purchases are online because LBS's charge MSRP, but those Specialized tire prices are good at LBS's and on their web site and I got mine at my LBS.
The key to getting a good tire is closeout sales and reviews, I never pay more than $32 for a tire nor have I been disappointed in any tire I got like that.
By the way, the trend is going towards the 700x25 size instead of the 700x23 because of the wee bit more comfort in the larger tire, slightly better wear, and slightly less rolling resistance, if none of that is real important to you, you can get great sale prices on the 23 size tires because companies are dumping their huge inventories of that size which makes a great deal for you.