Well ....
The 'feel' of a cue is something you have to judge for yourself. I consider this to be the overall balance and hit of a cue. I test this with various shots, including stun shots, power follow shots, full length draw shots (on rail and off rail), spin shots, half table draw 1-2" shots, half table follow 1-2" shots.
Balance matters a lot to me, probably more than most players, and I have to make sure the handle (of the butt) is not overly big.
I have stroked some 18 oz that felt like a 19.5 oz, and vica versa. I like a 20.2 oz, but like it to feel like a 19.5 oz, and the balance is what does it.
I like to feel the weight in the forearm above the wrap, or the middle.
If I feel the majority of the weight in the upper portion of the wrap, or bottom portion of the wrap, I do not like it. Even cues with the same balance point can feel different depending on wood used, taper of butt, etc..
You can establish your own guidelines for buying, but I would never spend more than a $1,000 for a cue that I had not tried first, and I would have to have real good information and mental feel for any cue under a $1,000 to buy sight unseen unless it was really cheap and a decided gamble on my part.
I am amazed by all the transactions that go on the buy/sell section of cues without the buyer having seen the cue except for pictures. Most of the buyers do not seem to ask detail information about the butt of cues, including butt diameter in wrap area, balance point of butt, length and type of rubber bumper, weight bolt or not?, double pressed Irish linen wrap or single pressed?, etc.. Maybe they do in PM's, but do not seem to in the subforum publicly.
I would hate to spend a bunch of money on a good cue only to find out the balance and feel just weren't right for me. I don't like to having to adjust my playing to a cue. Cues are just like women, you will know when you find the right one.