Good speakers to be placed close to rear wall

What about the following alternative? Is it a realistic solution?

*look for the best speaker I can afford and use in combination with a sub
*if rear ported, plug the port
*place the speaker as close as necessary

I'm wondering if the sound characteristics of a better quality rear ported speaker with the port plugged will be better than an inferior front ported speaker. Any thoughts on this?

Audio phsycic Classic series range from about $3,500 to maybe around 7K. Very nice controlled speakers. I heard the Classic 20 and 30. The 30 I liked much more being the more expensive set but to be honest the room was set up more for them. Can be played at high/low levels and still maintain the tonal qualities that make them great.No ports so you do not have to worry about rear or side walls for air movement. The article that I read after hearing them stated that to achieve the fullest bass response they had to position them closer to the wall. I am seriously thinking about these. see link

http://www.audiophysic.de/download/classic30/stereo0913_classic30en.pdf

You might also check out (the clue) by Sjofn Hifi. Great reviews, relatively inexpensive and (so they say) bass and imaging to die for. And they are designed to sit within 2" of the wall behind them!

Highly recommend the clue. 2 pairs, stacked w the top pair upside down would be well w/in your budget and they are designed to be placed w/in 2" of the wall. Somebody even sells a stand that is specially designed to set them up that way. No relationship, not a dealer, yada yada.

Neumann KH310A - 3 way, no ports, active design so no need for an amp, and they go plenty low.